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

Chess variants server

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

strong UCI engine for Makruk (Thai chess, หมากรุก) based on Stockfish; superseded by https://github.com/fairy-stockfish/Fairy-Stockfish

A minimal, format-agnostic Ruby library for representing positions in two-player, turn-based board games (chess, shogi, xiangqi, and variants).

distributed chess variant engine testing

Makruk (Thai chess) library written in Typescript with AI.

A free, open-source ThaiChess platform

Chess variant website

A minimal, format-agnostic Elixir library for representing positions in two-player, turn-based board games (chess, shogi, xiangqi, and variants).

Initialize and update positions of chess variants.

Thai Chess web application by Node.js

Open-source Thai chess (Makruk) training platform — play, hint, puzzles, AI lab. The tool the kid version of me wanted but couldn't find.

Chaturanga — traditional chess games as free, open-source PWAs: หมากรุกไทย Makruk (Thai chess, live) and စစ်တုရင် Sittuyin (Burmese chess, in progress). Play vs computer, with friends, and learn with lessons.

Makruk (Thai chess) engine in Rust + WebAssembly, with exact counting-rule adjudication and the measurement harness that keeps its strength numbers honest.