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A console/text based chess program with XBoard/CECP and UCI API, available on all major platforms. You may need a graphical chess interface to use it. Please refer to README.md in the files section for installation instructions.
The last stable release is 2.2.0 and has been released on 13/04/2026.
Belofte 0.2.0 till 0.9.20 (c/c++): Xboard 1 & 2 (CECP) - Linux/Unix/(Windows)
Belofte 2.1.1 and up (c++11) : UCI and Xboard 2 - Linux/Windows/Mac/Android/...
OliveChess is a simple chess engine compatible with modern chess interfaces such as ChessBase products, Arena and XBoard/Winboard.
The engine supports UCI and XBoard protocols.
Note: in order to use it as an xboard engine you may need Polyglot tool to be installed first
dgtdrv aims to be a uci/xboard/crafty compatible interface (input engine) for the DGT Electronic Chess board on POSIX platforms. It relies on the dgtnix library.
Chess for the Blind for the JAWS or NVDA Screen Readers
Winboard 4.5 32-bit is a free Windows accessible Chess program that works automatically with the JAWS or the free NVDA screen reader. It is for the blind, low sighted or those who can not use a mouse. It provides vocal announcements of position changes and other selectable board conditions. Blind players also use a separate "tactile chess board". Winboard 4.5 has full keyboard access to move pieces and run menu items. Partial sighted players use high contrast mode and adjust board, piece,...
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...It is completely written in ANSI-C using nothing more than the standard library and thus is very portable and easy to compile on almost every platform.
yacen uses the common UCI interface to communicate with any compatible GUI.
NOTE: yacen is currently in pre-alpha status. This means that there is only source code available which is far from complete and thus cannot be compiled to a working binary yet. A more complete source code and first binaries for Linux and Windows will be available when the project reaches alpha status.
An open source chess engine in C, released under the GPL. Compatible with the XBoard and UCI interface protocols to link to a GUI or other chess arbiter.
Neophyte is a Winboard and UCI compatible chess engine designed to play with a human style. Strong play comes second to the goal of playing like a human.
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The Universal Codec Interface project aims to create a standard set of APIs and interface library to use any multimedia codec from any application. It provides a flexible, "plug and play" architecture with a minimum of overhead for codec use.
CINAG is an UCI computer chess engine. This is a module which thinks about the game and try to find the best move for each position. Our goal is to create a quite strong opponent by using state of the art AI technics.