Third-party components

Back to PicChess. Everything runs in your browser; nothing is uploaded.

ComponentLicenceSource and licence text
Stockfish 19 (lite, single-threaded WASM), packaged by stockfish.jsGPL-3.0 Shipped unmodified as separate files in engine/ and used only through a Web Worker (UCI text). Source: github.com/official-stockfish/Stockfish, packaging github.com/nmrugg/stockfish.js. Licence text, notes and checksums.
chess.js 1.4.0BSD-2-Clausegithub.com/jhlywa/chess.js, licence
cm-chessboard 8.15.3 (source, board CSS, markers)MITgithub.com/shaack/cm-chessboard, licence
Chessnut piece set by Alexis LuengasApache-2.0lichess copy, licence
PicChess app code and iconsProject code (own work)Icons are generated locally by tools/make_icons.py.