A TypeScript bitboard chess move generation engine
Player SDK for building Quantum Chess AIs — match runner, explorer, tournament system, reference AI
Chess diagram toolkit — parse & edit FEN positions, manipulate boards, render SVG diagrams, board themes, color, image & DPI utilities. Works in Node.js and browsers.
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The best app to extract your chess data from Lichess and Chess.com
Play chess against the LLM in pi's TUI — full rules, annotated moves, disk persistence, and constant context cost
Play chess against Claude Code. Installs a /chess skill: a Node server + clickable board with a legal-move engine, where Claude plays black.
Production-grade framework-agnostic TypeScript chessboard platform with real chess interaction built in.
React and Next wrapper for Chessground with chessboard and pieces out of the box
Unified MCP server — 41 sports API providers, 396 tools. Scores, stats, odds, esports, chess, motorsport, boxing, AFL, and more.
React chess puzzle kit: play, controls, analysis, and browser Stockfish for endchess.training and other apps