Source Code

Play Strategy is built on top of some wonderful free/libre open source software, and our changes to these software are also licensed under the same license. You can download, read, use and modify all of these components.

Main server

• ornicar/lila Main backend and frontend (Scala) - > Mind-Sports-Games/lila
• ornicar/scalachess Rules of chess and its variants (Scala) -> Mind-Sports-Games/strategygames
• lichess-org/compression Compression algorithms for chess moves and clocks (Java)
• ornicar/chessground Frontend chess board (TypeScript) -> Mind-Sports-Games/chessground (integrated chessgroundx)
• niklasf/stockfish.js, niklasf/stockfish.wasm, hi-ogawa/Stockfish Stockfish compiled for browsers (C++, WebAssembly, JavaScript)
• niklasf/chessops Client-side chess and chess variant rules and operations (TypeScript) -> Mind-Sports-Games/chessops
• RoepStoep/lidraughts Backend and frontend for Draughts -> Our version is split between Mind-Sports-Games/scalachess and Mind-Sports-Games/lila

External services

• ornicar/lila-ws WebSocket traffic (Scala) -> Mind-Sports-Games/lila-ws
• ornicar/lila-fishnet Fishnet move requests (Scala)
• ornicar/lila-search Search engine (Scala)
• niklasf/lila-openingexplorer Opening explorer (Scala)
• niklasf/lila-tablebase Tablebase (Rust)
• niklasf/lila-push Web Push service (Rust)
• niklasf/fishnet Distributed computer analysis, using official-stockfish/Stockfish and ianfab/Fairy-Stockfish, a Stockfish fork with chess variant support (Rust, C++)
• niklasf/lila-gif GIF generator for games and positions (Rust)
• clarkerubber/irwin AI that learns cheating patterns to help mods (Python)
• niklasf/lila-ip2proxy Query database of known proxy IPs (Rust)
• cyanfish/bbpPairings Swiss pairings (C++)

Docs, utilities, others

• ornicar/scalalib Misc Scala utilities
• ornicar/playframework-lila Trimmed down Play Framework fork
• ornicar/cash Trimmed down cash.js fork
• niklasf/eco Aggregated data set of chess opening names
• clarkerubber/Staunton-Pieces Original 3D rendered pieces, boards and trophies
• gbtami/pychess-variants shogi and xiangqi piece sets and board images (thanks to pychess.org)

Happy coding!