Browse free open source C Chess Games and projects below. Use the toggles on the left to filter open source C Chess Games by OS, license, language, programming language, and project status.

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  • 1
    Scid vs. PC

    Scid vs. PC

    Chess Database and Toolkit program

    "Shane's Chess Information Database" is a huge chess toolkit with extensive database, analysis and chess-playing features. Scid vs. PC is a usability and bug-fix fork of Scid. It has many interface fixes and improvements, and is fully compatible with Scid's .si4 databases. New features include a rewritten Gamelist, Computer Tournament, and FICS, Tree, Book and Graph improvements.
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    Downloads: 981 This Week
    Last Update:
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  • 2
    Scidb

    Scidb

    Chess Database Application

    Scidb is an open-source chess database application for Windows, Unix/Linux. It is a new development inspired by Scid.
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    Downloads: 21 This Week
    Last Update:
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  • 3
    GCompris : I got IT

    GCompris : I got IT

    Educational Software for children aged 2 to 10.

    GCompris is a high quality educational software suite comprising of numerous activities for children aged 2 to 10. Some of the activities are game oriented, but nonetheless still educational.
    Downloads: 18 This Week
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  • 4
    ChessDB is a free open-source chess database for Windows, Linux, Mac OSX and most UNIX and UNIX-like operating systems. ChessDB is based on code from Scid http://scid.sourceforge.net/ - a project for which there have been no updates for several years. In
    Downloads: 28 This Week
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  • 5
    Popeye is a chess problem solving and testing software with strong support for fairy chess and heterodox genres. For more information cf. topic "Popeye (chess)" on http://en.wikipedia.org/
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    Downloads: 7 This Week
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  • 6
    Winboard 4.5 Accessible Chess

    Winboard 4.5 Accessible Chess

    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, most font sizes and colors. Available languages are English, German, Spanish, Italian, Dutch and Russian. Games may be viewed, modified or saved in standard PGN format. Two Chess engines supply play and grand master strength move analysis. Connect to the Free Internet Chess Server (FICS) and play humans. Modify verbosity in screen reader configurations and in the Winboard "Sound" dialog under the "General" menu. Find all documentation in the "doc" folder under the Winboard directory of your C drive.
    Downloads: 18 This Week
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  • 7
    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.
    Downloads: 4 This Week
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  • 8

    c-board

    A console/ncurses chess engine frontend and PGN editor.

    CBoard (Curses/Console Board) is an Ncurses frontend to chess engines supporting the XBoard protocol. Supports reading and writing PGN including roster tags, RAV, FEN, NAG and comments, lots of configuration options, UTF-8, different board sizes depending on the terminal and more.
    Downloads: 4 This Week
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  • 9
    olivechess

    olivechess

    a UCI chess engine

    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
    Downloads: 7 This Week
    Last Update:
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  • 10
    Gambit

    Gambit

    A cross-platform chess game.

    Gambit is a cross-platform chess game. There are binaries for Windows users. Users of Unix-like operating systems can check the web site for build instructions (it should be easy to follow).
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    Downloads: 5 This Week
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  • 11
    Faile is a free chess program which plays a fairly strong game of chess (Expert strength or better). One of the main goals of Faile is to provide a full featured chess program with source code which is tidy, well documented, and easy to understand.
    Downloads: 2 This Week
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  • 12
    This project is a POSIX-compliant driver for the dgt board from dgtprojects. It is intented at acting as a layer between chess engines and the dgt board.
    Downloads: 1 This Week
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  • 13
    Small potato is a IETF protocol version 2 compliant chess engine, to be used with XBoard/WinBoard style interfaces.
    Downloads: 2 This Week
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  • 14

    OBender

    Chess program

    Chess program, plays quite interesting, installer for windows, works in Linux under xboard, source code in pure C
    Downloads: 1 This Week
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  • 15
    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.
    Downloads: 1 This Week
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  • 16
    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.
    Downloads: 1 This Week
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  • 17
    belofte chess

    belofte chess

    A promising chess program

    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 2.1.9 and has been released on 19/08/2025. 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/... For access to code, please clone the git repository. Compiles and Runs on 32/64 bit on Windows, Mac, Linux, Android (ARM/x86) and Raspberry. Released under GNU v2 license. (means free to copy, free to modify, free to use, ...) Works fine with Arena/Cutechess/BanksiaGui/Winboard/Xboard/...
    Downloads: 1 This Week
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  • 18

    icsDrone

    icsdrone is an interface between a chess server and a chess engine

    icsdrone acts as an interface between an ICS (Internet Chess Server) and a chess engine supporting the XBoard/WinBoard protocol. Unlike XBoard/WinBoard it does not use a graphical interface so it is suitable for use on embedded systems. icsdrone was originally developed for FICS (the Free Internet Chess Server) by Henrik Gram but currently ICC (the Internet Chess Club) works as well. Some features - "Daemon mode" (run in background). - Auto reconnection in case of network problems. - Builtin support for using timeseal. - An ICS proxy. When instructed via the "proxy" option, icsdrone acts as a proxy for the ICS it is connected to. This is similar to using xboard with zippy but now the "GUI" (xboard/winboard) can be closed without terminating the engine.
    Downloads: 1 This Week
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  • 19
    ABKit is a C++ library intended to accelerate board games development by providing the thinking engine under the Alpha-Beta algorithm. The application just need to create a few C++ methods to adapt to the actual game (like Chess, Checkers, ...).
    Downloads: 0 This Week
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  • 20
    CP 3D Chess
    Cross-Platform 3D Chess A 3D chess game made using OpenGL and C++ Objectives: -High Quality Graphics -Proper Chess Rules -Availability of Unofficial Chess Rules -Reading Generic Chess Files -Proper A.I. for user vs. computer modes -Good GUI -Network Current Status: Chess rules exist
    Downloads: 0 This Week
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  • 21
    Play chess on popular Internet Chess Servers (ICS servers) with a Palm-OS-based PDA. This version builds on the original version 1.0 created and released by David Barr.
    Downloads: 0 This Week
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  • 22
    Given a placement of pieces on a chessboard, find the move which forces checkmate as rapidly as possible.
    Downloads: 0 This Week
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  • 23
    Downloads: 0 This Week
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  • 24
    Chess challenge is an open source chess AI project with GUI. If you want source drop me a mail. ces.mohab[at]yahoo[dot]com
    Downloads: 0 This Week
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  • 25
    It is a Chiese chess game, using GTK+-2.0. I write this for playing it with my remote friend. Not supportting one player vs computer. I hope that it is useful.
    Downloads: 0 This Week
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