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: