Open Source Chess Engines
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Chess Engines
Browse free open source Chess Engines and projects for Windows and ChromeOS below. Use the toggles on the left to filter open source Chess Engines by OS, license, language, programming language, and project status.
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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.
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BagaturChess
Java Chess Engine
This is UCI Chess Engine writen in Java. Since version 1.4 (inclusive) the project was moved to https://github.com/bagaturchess/Bagatur -
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Provides interface for working with chess games in PGN (use libpgn) make moves, and get result
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Frittle is an open source amateur Java Chess Engine that supports the XBoard/WinBoard Chess Engine Communication Protocol (version 2).
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Redqueen is an UCI (Universal Chess Interface) only compatible chess engine written in C++.
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JChess
The Java Chess Engine
This library is an attempt to create a flexible chess engine using the Java programing language. The main diference than others chess engine's is that it is only a library, and it can be attached to any program, including a web application. If you are interested to contribute please contact me. Francisco Rafael Del Roio <francipvb@hotmail.com>. -
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Cave Chess
A Java chess engine using xboard protocol
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ChessApplication
A chess application : game with human and/or computer
A chess application in order to play against computer or to play with another human. No network playing is planned (no FICS). This program uses the Carballo Chess Engine in order to check moves, and the Stockfish engine (that you must download on their website) in order to generate the computer moves. -
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ChessShell API
Extensive Java chess database libraries.
Extensive Java chess database libraries. Native game database, native position database, pgn database reader. -
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Java Program of a machine which plays chess: it recognizes the chessboard, the position, the move of the opponent, and asks an external Chess Engine to reply to the opponent move. it is connected to a real robot which has an arm to manipulate the pieces.
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KMT Chess is a chess engine. It supports Winboard Chess Engine Protocol and can be used in combination with Winboard or Arena user interfaces. KMTWinboard package includes WinboardX interface and a opening book, providing a much better user experience.
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The Minerva Chess Engine is an artificial chess opponent. It learns as it plays and can be distributed across multiple computers for increased power.
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MinkoChess is a multiplatform chess engine written in C++.
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Paltry Chess
HTW Saar - PIB Projektarbeit 2013
This chess engine is the result of the project work 2013 at the University of Applied Sciences, study programme Applied Informatics. The target was to write an engine that is able to play chess with the official FIDE rules. At the moment, the engine chooses the first-found valid move instead of the best move. Other java classes should be fine. - shout-out to Mediocre Chess -
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PluggableChessGraphism
Take the chess graphism, and use it with a chess engine.
You are given a chess graphical interface, with drag and drop functionnalities (or other interaction mode), board flipping, and some pieces/cells sets given. Then, you have some callbacks methods in order to validate moves from your chess engine and to update them to your chess engine. -
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Computer chess engine written using Qt4, which works under Knights, Jose, Arena and other chess board GUI games. Uses bitboard game representation and alpha beta brute-force search to analyse chess positions.