Top 149 chess open source projects

Tablebase server

Julia chess programming library.

A program that will produce a graphical sunburst chart of chess openings from the PGN that is provided to it

The strong open source chess engine Stockfish compiled to JavaScript and WebAssembly using Emscripten

The game of Chess

Parse and create PGNs (Portable Game Notation for chess games)

Reads chess games in PGN format and adds annotations using an engine

Uses neural networks to extract chess positions from images

A chess-themed tutorial on writing an SPA in Bucklescript-TEA

UCI Chess Engine

A chess website where people can play against each other online.

Open-source software to play the board game Hive.

Java based Chess Board Scanner, which converts 2D chess board image into a machine readable format a.k.a. Forsyth–Edwards Notation (FEN). It uses OpenCV and Deeplearning4j frameworks, complemented with some proprietary algorithms implemented for realizing the goal. It currently supports the chess board and pieces sets of the most common online c…

Online Heads-Up version of Chinese Chess built with Unity 3D

A JavaScript/TypeScript library implementing the chess game rules and providing tools to read/write the standard chess file formats.

An aggregated data set of chess opening names

Chess analysis Universal Windows 10 application.

Chess demo in Bevy

Opening explorer for lichess.org that can handle all the variants and billions of unique positions

Shogi (Japanese Chess) pieces and boards

This toolkit is created to make it easier for you to develop games like chess, checkers, go, match 3 puzzle and more. It is still under development.

Generate chess puzzles / tactics from a pgn file

Predicts the best chess move with 27.5% accuracy by a single matrix multiplication

[No longer maintained] A .NET chess library, written in C#

An implementation of the AlphaZero algorithm for chess

Online multiplayer chess website that lets you build custom pieces/boards. Written in Svelte + Rust.

This program uses the lichess REST API to retrieve all the games of a user and transform them into a big PGN file that you can then import into your favourite game analysis tool (ie. scid)

A chess library for PHP.

Chess API: REST API for playing chess and storing highscores