playground for Fairy-Stockfish in the browser

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

Fairy-Stockfish website

variant-agnostic UCI chess variant engine matches

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

Variant NNUE training data generator for Fairy-Stockfish

chess variant EPD opening book generation in the browser

Puzzle generator for chess variants

EPD opening book generation and filtering for chess and chess variants

chess variant NNUE training code for Fairy-Stockfish

Fairy-Stockfish organization readme

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

Demo frontend for Fairy-Stockfish running with WebAssembly

CECP/xboard variant engine matches (e.g., for bughouse)

An interface for chess variants,can also apply Katago and Fairy-Stockfish to analyze games.

Fairy-Stockfish PGN viewer in the browser

Calculate game statistics for chess variants

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.

distributed chess variant engine testing

MCTS/UCT search for chess variants