# Copying Infinite Chess Any file in this project that does not state otherwise and is not listed as an exception below is part of Infinite Chess and copyright © 2023-2026 Naviary (InfiniteChess.org). Infinite Chess is free software; you can redistribute and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation; either version 3 of the License, or (at your option) any later version. Any works derived from this software must also be released under the same license. Infinite Chess is distributed WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the [GNU Affero General Public License](https://www.gnu.org/licenses/agpl-3.0.en.html) for more details. See [LICENSE](../LICENSE) for a copy of the GNU Affero General Public License. ## Exceptions (free) | Files | Author(s) | License | | --------------------------------------------------------- | --------------------------------------------------------------------------------------- | ----------------------------------------------------------------- | | dev-utils/pieces/themes/cburnett | [Cburnett](https://en.wikipedia.org/wiki/User:Cburnett) | [CC BY-SA 3.0](http://creativecommons.org/licenses/by-sa/3.0/) | | dev-utils/pieces/themes/green_chess | [Green Chess](https://greenchess.net/index.php) | [CC BY-SA 3.0](http://creativecommons.org/licenses/by-sa/3.0/) | | dev-utils/pieces/themes/stockfish | [Stockfish](https://github.com/official-stockfish/Stockfish) | [GPLv3](https://www.gnu.org/licenses/gpl-3.0.en.html) | | dev-utils/pieces/themes/pychess | [Pychess](https://github.com/pychess/pychess) | [GPLv3](https://www.gnu.org/licenses/gpl-3.0.en.html) | | dev-utils/sounds/lichess | [Lichess](https://github.com/lichess-org/lila) | [AGPL v3.0](https://www.gnu.org/licenses/#AGPL) | | dev-utils/sounds/fesliyan_studios | [Fesliyan Studios](https://www.fesliyanstudios.com/) | No credit required, but cannot be reposted elsewhere for download | | dev-utils/scripts/gl-matrix.js | Brandon Jones and Colin MacKenzie IV | [MIT](https://opensource.org/license/mit) | | src/client/scripts/esm/chess/logic/icn/icnconverter.ts | [Andreas Tsevas](https://github.com/tsevasa) and [Naviary](https://github.com/Naviary2) | [Unlicense](https://en.wikipedia.org/wiki/Unlicense) | | src/client/scripts/esm/chess/logic/icn/icncommentutils.ts | [Andreas Tsevas](https://github.com/tsevasa) and [Naviary](https://github.com/Naviary2) | [Unlicense](https://en.wikipedia.org/wiki/Unlicense) |