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

Consolidated view of all your chess games from chess.com, lichess, grandmaster games or custom pgn.

A free, open-source and modern Chess Variant Analysis GUI for the 21st century

Chess, Janggi, Xiangqi, Sittuyin pieces and boards

chess variant NNUE training code for Fairy-Stockfish

Godot-based hexagonal chess program featuring multiple variants, basic AI and peer-to-peer multiplayer

playground for Fairy-Stockfish in the browser

A UCI-compatible four-player chess engine powered by deep RL and 256-bit bitboards.

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

EPD opening book generation and filtering for chess and chess variants

Calculate game statistics for chess variants

Minimalistic chess variant GUI for Fairy-Stockfish, superseded by fairyground

♟️ TypeScript library for the strategy game from the HUNTER×HUNTER manga

Variant NNUE training data generator for Fairy-Stockfish

Puzzle generator for chess variants

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

CrazyAra - A Deep Learning UCI-Chess Variant Engine written in C++ 🐦

An open source chess project in Node/Next.js. For the ❤️ of chess.

Enjoy a game of chess with 4 players! This is a web-based chess game that allows you to play with friends. The game is designed to be played in a web browser and is compatible with most modern browsers. Currently the game is in beta and is being actively developed. The game is open source and contributions are welcome!

opening books for chess variants in EPD format for engine testing and tuning, generated with https://github.com/fairy-stockfish/bookgen