lichess - Online Chess Game Server

•    Scala

Lila (li[chess in sca]la) is a free online chess game server focused on realtime gameplay and ease of use. It features a search engine, computer analysis distributed with fishnet, tournaments, simuls, forums, teams, tactic trainer, a mobile app, and a shared analysis board. The UI is available in more than 80 languages thanks to the community.

Chess Editor

•    Java

Chess Editor is a pure Java tool to create, edit and view chess games in the Portable Game Notation (PGN) format. The tool integrates with externally specified chess engine programs to provide analysis of board positions.

AIND-Isolation

•    Python

In this project, students will develop an adversarial search agent to play the game "Isolation". Isolation is a deterministic, two-player game of perfect information in which the players alternate turns moving a single piece from one cell to another on a board. Whenever either player occupies a cell, that cell becomes blocked for the remainder of the game. The first player with no remaining legal moves loses, and the opponent is declared the winner. These rules are implemented in the isolation.Board class provided in the repository. This project uses a version of Isolation where each agent is restricted to L-shaped movements (like a knight in chess) on a rectangular grid (like a chess or checkerboard). The agents can move to any open cell on the board that is 2-rows and 1-column or 2-columns and 1-row away from their current position on the board. Movements are blocked at the edges of the board (the board does not wrap around), however, the player can "jump" blocked or occupied spaces (just like a knight in chess).

stockfish-mac - Beautiful, powerful chess app for the Mac

•    C++

Stockfish for Mac is a powerful chess analysis app. Play two-player games on the beautiful chess board, or get instant accurate analysis of any game. Features Stockfish for Mac does not have are currently open tickets in the issue tracker.

Ouk-Khmer Chess

•    Java

Ouk or Ouk Chaktrung is a Khmer chess. It is similar to Western Chess but some of the chess pieces are moved differently. Ouk is one of the most popular board games played in Cambodia.

OSTINATO - A chess library that runs on the server (Scala), on the browser (ScalaJS) and on the REPL

•    Scala

OSTINATO is a chess library that runs on the server (Scala), on the browser (ScalaJS) and on the REPL. It supports the following Chess notations (with variants): PGN, Algebraic, Figurine, Coordinate, Descriptive, ICCF, Smith and FEN.

aigochess

•    C++

aigochess is a chess-style board game and uses improved faile engine with strong AI.The feature of this game is adding two Cannon which comes from Chinese Chess into original chess. It's the official traning software for China aigo Chess Club.

jose

•    Java

jose is a graphical Chess tool. You can store chess games in a database. You can view and edit games (including variations and comments). You can play against a plugged-in chess engine and use it for analysis. Features 3D board view.

Swyish Chess

•    CSharp

Chess Application built using C# and WPF

InterFace

•    C++

Chat Messenger - Open Source Social Network - Online Chess Game

Engine Wars Chess Client

•    CSharp

EngineWars is Client/Server framework to host chess matches of humans vs humans, humans vs Chess Engines, and engines vs engines in casual play and tournaments.

IRC Chess

IRC Chess is a 2 player chess game that you play right on IRC, with standard IRC commands. A chess server lets multiple games be played simultaneously

Stockfish - A powerful, open-source chess engine

•    C++

Stockfish plays better and faster than humans. And it's one of the strongest chess engines in the world, appearing near or at the top of most chess engine rating lists.

PGN to PGC Chess Game Format

•    C++

pgn2pgc converts text Portable Game Notation (PGN) chess files into highly compressed Portable Game Coding (PGC) chess files. This is the only implementation of PGC as described in the PGN standard. Code is also useful for writing chess software.

vue-chess - Multiplayer online chess game use Vue , Nodejs, Webpack, Em6, Socket

•    Javascript

Multiplayer online chess game use Vue , Nodejs, Webpack, Em6, Socket.io, Mongodb, Express

Mobile Chess and Flash Chess

•    Java

Mobile Chess (for Java ME) and Flash Chess (for Web) with Strong Chess AI, see http://mobilechess.sourceforge.net/. Java Applet Chess and Ajax Chess are also available. Mobile Chess is sponsored by Chess Wizard now, see http://www.chess-wizard.com/.

Ultra-Chess

•    Pascal

A 10x10 squares Chess Game Engine. The Rules are similar to ordinary 8x8 chess, but there are 2 more pawns on each side, and 4 additional pieces, that increase the complexity and game expereience of chess.

PalmPGN

•    C++

A PGN-format chess game viewer for the PalmOS. Displays PGN format chess games and (will display) FEN format positions, and allow the entry of new games.

WPF 3D Chess Game

•    WPF

A WPF (Windows Presentation Foundation) 3D chess game. Supports AI or "player vs. player" game modes.

Thief

•    C

Thief is a free chess client to play on chess servers like FICS: http://www.freechess.org It supports regular chess and all variants played. It is the best client for playing Bughouse, a special team-chess game (for more info see http://www.bughouse.