chess variant engine supporting Xiangqi, Shogi, Janggi, Makruk, S-Chess, Crazyhouse, Bughouse, and many more

A highly customizable way to play chess in your terminal. Play online (via Lichess.org) and offline against the Fairy-Stockfish engine. All Lichess variants are supported.

Advanced Chess Assistance System for Chess.com, Lichess.org, Pychess.org and more. Hassle-free 1-click install, no downloading. All devices and browsers supported.

Fairy-Stockfish releases with built-in NNUE (neural network) for Xiangqi, Janggi, and Makruk

chess variant NNUE training code for Fairy-Stockfish

playground for Fairy-Stockfish in the browser

EPD opening book generation and filtering for chess and chess variants

WebAssembly port of the chess variant engine Fairy-Stockfish with NNUE support

Minimalistic chess variant GUI for Fairy-Stockfish, superseded by fairyground

Calculate game statistics for chess variants

Puzzle generator for chess variants

Variant NNUE training data generator for Fairy-Stockfish

Demo frontend for Fairy-Stockfish running with WebAssembly

MCTS/UCT search for chess variants

distributed chess variant engine testing

Documentation of experiments and ideas about knowledge discovery for chess variants

bad move chess variant engine supporting Xiangqi, Shogi, Janggi, Makruk, S-Chess, Crazyhouse, Bughouse, and many more

A strong Lichess Bot made in js that can be deployed to Heroku

chess variant EPD opening book generation in the browser

Fairy-Stockfish website