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

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  • 1
    LucasChessR

    LucasChessR

    GUI of chess

    Lucas Chess (R) is a free, open-source chess program designed primarily for training and improving chess skills. It acts as a comprehensive learning platform, offering tools for beginners and advanced players alike. The software includes a wide range of exercises covering openings, tactics, endgames, and visualization techniques. Users can play against multiple chess engines with adjustable difficulty levels that simulate different strengths. It also provides detailed game analysis, helping players understand mistakes and improve decision-making. Overall, Lucas Chess (R) combines gameplay, training, and analysis into a single powerful chess improvement suite.
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    Downloads: 3,797 This Week
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  • 2
    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: 827 This Week
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  • 3
    Stockfish

    Stockfish

    UCI chess engine

    Stockfish is a free, powerful UCI chess engine derived from Glaurung 2.1. Stockfish is not a complete chess program and requires a UCI-compatible graphical user interface (GUI) (e.g. XBoard with PolyGlot, Scid, Cute Chess, eboard, Arena, Sigma Chess, Shredder, Chess Partner or Fritz) in order to be used comfortably. Read the documentation for your GUI of choice for information about how to use Stockfish with it. Stockfish is a 11-time winner of the Top Chess Engine Championship. Stockfish is open source (GPLv3 license). That means you can read the code, modify it, and contribute back. You can use Stockfish on your computer or on your iOS or Android device. So you can get world-class chess analysis, wherever you are. The Stockfish engine features two evaluation functions for chess, the classical evaluation based on handcrafted terms, and the NNUE evaluation based on efficiently updatable neural networks.
    Downloads: 157 This Week
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  • 4
    ChessX

    ChessX

    Chess Database and PGN viewer

    A free and open source chess database application for Linux, Mac OS X and Windows.
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    Downloads: 459 This Week
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  • 5
    lichess.org

    lichess.org

    The forever free, ad-free and open source chess server

    lichess.org (also known as Lila - lichess in Scala) is a free and open source chess server written in Scala 2.13 that focuses on real time gameplay and ease of use. It’s where countless chess players and chess enthusiasts can gather and watch or play from a selection of over a million games every day, analyze games, learn and improve their playing. lichess is equipped with a search engine, computer analysis, tournaments, exhibitions, a mobile app, a shared analysis board, and so much more. Thanks to its large active community, the UI is available in more than 130 different languages. lichess is one of the most popular chess websites in the world and remains totally free and ad-free. Visit https://lichess.org today to know more and see what it’s about!
    Downloads: 22 This Week
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  • 6
    AlphaZero.jl

    AlphaZero.jl

    A generic, simple and fast implementation of Deepmind's AlphaZero

    Beyond its much publicized success in attaining superhuman level at games such as Chess and Go, DeepMind's AlphaZero algorithm illustrates a more general methodology of combining learning and search to explore large combinatorial spaces effectively. We believe that this methodology can have exciting applications in many different research areas. Because AlphaZero is resource-hungry, successful open-source implementations (such as Leela Zero) are written in low-level languages (such as C++) and optimized for highly distributed computing environments. This makes them hardly accessible for students, researchers and hackers. Many simple Python implementations can be found on Github, but none of them is able to beat a reasonable baseline on games such as Othello or Connect Four. As an illustration, the benchmark in the README of the most popular of them only features a random baseline, along with a greedy baseline that does not appear to be significantly stronger.
    Downloads: 21 This Week
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  • 7
    Cassandre is an extensible chess engine written in C++, it is Winboard/XBoard compliant.
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    Downloads: 478 This Week
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  • 8
    Brutal Chess features full 3D graphics, an advanced particle engine, and several different levels of intelligent AI, inspired by the once popular "Battle Chess" released by Interplay circa 1988.
    Downloads: 123 This Week
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  • 9
    Jin is a Java client for various chess servers. It currently supports the Internet Chess Club (chessclub.com) and the Free Internet Chess Server (freechess.org) but is designed to be able to support any chess server.
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    Downloads: 38 This Week
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  • 10
    15 Million Games Chess Database

    15 Million Games Chess Database

    World largest chess database

    Chess database with 15,9 Million games. Database is categorized into 6 parts, to learn which one you need please browse all files and read description. In addition a huge collection of opening books for chess engines and Arena. As well as other chess resources, to download separate packages please browse "all files"
    Downloads: 50 This Week
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  • 11
    ChessMD

    ChessMD

    ChessMD is a Qt-based chess game viewer with engine analysis

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    Downloads: 76 This Week
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  • 12
    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
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  • 13
    Dice endgames

    Dice endgames

    Dice endgames — generation of endgames with dices.

    Dice endgames is a gambling and logical game with perfect information, at the same time being a variety of both variants of chess and checkers-like games, and dices. In this game, the arrangement of chess pieces depends on the values on the sides of the dice. It was conceived as teaching and training how to solve endgames, problems or random arrangements, such as Fischer's chess, in various board games of logic.
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    Downloads: 53 This Week
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  • 14
    Eagle Mode

    Eagle Mode

    Zoomable user interface (ZUI) with file manager, file viewers and more

    Eagle Mode is a zoomable user interface (ZUI) with file manager, file viewers, games, and more. This project is about a futuristic style of human-computer interaction, where the user can visit almost everything simply by zooming in. It features a portable C++ toolkit API for developing such ZUIs, and it features the Eagle Mode application, which provides a virtual cosmos with plugin applications. The most important one is the professional file manager with its rich, scriptable command set. It integrates file viewers for most of the common file types, as well as an audio and video player. Furthermore, the virtual cosmos contains a chess game, a netwalk game, a 3D minesweeper game, a multi-function clock, a stock watchlist, some fractals, and a Linux kernel configurator in form of a kernel patch.
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    Downloads: 18 This Week
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  • 15
    chessPDFBrowser

    chessPDFBrowser

    Chess application whichs allows working with chess PDF books and PGNs.

    Chess application which allows working with PDFs and PGNs. You can work with the chess games of the PDF and edit their tree of variants. Graphical environment. Standard PGN TAGs. PGN comments. Ocr like (Fen string detection from chess board position images). Connection to Uci chess engines (like stockfish). Position analysis, full game analysis. You can now play games against uci engines. pdf2pgn command line command included. Detailed documentation. Multilanguage currently support for English, Spanish and Catalan. Dark mode option. JDK-17 compatibility You will find more about it at this web sites: https://chesspdfbrowser.com?origin=sourceforge https://www.frojasg1.com:8443/downloads_web/web/html/chessPdfBrowser.html?origin=sourceforge
    Downloads: 46 This Week
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  • 16
    jose is a graphical Chess tool. >>> moved to https://peteschaefer.github.io/jose <<< 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.
    Downloads: 30 This Week
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  • 17
    pgn4web

    pgn4web

    javascript chess games viewer for websites, blogs and live broadcasts

    pgn4web is a javascript chess games viewer for websites, blogs and live broadcasts. "pgn4web has a clean design, and is easily integrated and configured in wordpress. And yet, below that layer of simplicity, it has enough bells and whistles to allow for more baroque needs and taste. A truly great plugin." GM Tiger Hillarp, using the pgn4web plugin for wordpress on his site chess at the bag of cats, May 2013. "We wanted a live viewer that could work on tablets and mobile phones. pgn4web did fit very well on every platform, is stable and matched our visual design. Also the horizontal view for the commentators and the vertical view for smartphones was a real plus." H.S. from the Max Euwe memorial tournament committee, using pgn4web for live broadcast and game reports, November 2011.
    Downloads: 16 This Week
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  • 18
    Accessible-Coconut

    Accessible-Coconut

    A GNU/Linux operating system accessible for visually impaired.

    Accessible-Coconut(AC) is a community driven GNU/Linux operating system which is completely accessible for persons with visual impairment. AC is derived from Ubuntu-MATE. Yes the goal is to make a free and open-source eyes free desktop environment. Forum : https://groups.google.com/forum/#!forum/accessible-coconut Telegram forum : https://telegram.me/accessible_coconut Project home : https://zendalona.com/
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    Downloads: 64 This Week
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  • 19
    Chess-gambiteer

    Chess-gambiteer

    Chess training program playing gambits

    Program to train against gambit play (*) with the computer, with a strength adjustable chess engine (Danasah, currently set at approx 1400 EL0 when playing against it). Also included now are two options to watch an engine e.g. the 'aggressive' Patricia5 (with gambits) play against another engine (eg IM level). The engine gambit books are made in such a way that 1) real lousy gambits are not played, and 2) the book is choosing a gambit line as often as possible, so for Black it might go for e.g. a Benko gambit or so and if you let it play with White, a lot of 1.e4 gambits can be played. Thereby, if you try a gambit yourself, the program might try to a counter-gambit (or sometimes an unconventional line). It will play weak against other engines, and it not meant as to play very strong/perfectly, but for human opponents, the gambit lines will most often result in entertaining -not boring- games, and require quite some concentration to avoid tactical mistakes.
    Downloads: 33 This Week
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  • 20
    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: 23 This Week
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  • 21
    Java Open Chess
    Java Open Chess is a project written in Java in NetBeans IDE. There is possibility to play for 2 players on local computers and via network connection. There is also an option to play versus quite weak computer oponent. Stronger computer oponens will be implemented soon. ATTENTION: Requires Java 1.8 or higher!
    Downloads: 13 This Week
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  • 22
    Crafty Chess Interface

    Crafty Chess Interface

    free open-source chess engine interface

    latest portable distribution: https://sourceforge.net/projects/craftychessinterface/files/crafty_gui_10.7z/download
    Downloads: 12 This Week
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  • 23
    Chess Round Robin Manager

    Chess Round Robin Manager

    Java Schach Turnierverwaltung / Java Chess Tournament Management

    Manage chess round robin tournaments with JKlubTV Version 3.0.0-beta This application stores the data belonging to round robin into a SQLite database. It is intended for webmasters who want to easily manage a club tournament in their own chess club. The HTML tables that are to be published for the website will be created easily by the application. Automatically calculate the total points, Sonneborn Berger points of each player, as well as their sequence DWZ, and sorts the HTML table by the calculated Rangliste.Desweiteren it is possible the tables as to save PDF file. The software is free (Opensource). - can access the DFB player database - the tables can export into HTML, PDF or Excel format - expects the result from DWZ - counted the points and the Sonneborn Berger figures - automatically sorts the crosstab after ranking Sourcecode on github.com: https://github.com/mars7105/Chess-Round-Robin-Manager Website: https://www.chessrobin.de/
    Downloads: 30 This Week
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  • 24
    Capa chess

    Capa chess

    Chess program

    Capa chess is a chess program. Features built-in simple engine, interface with external XBoard/WinBoard and UCI engines, basic plug-in capabilities, import/export, 2D/3D boards with customization. Java JRE 1.8 or above required.
    Downloads: 8 This Week
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  • 25
    Chess engine code name "Gull"
    Downloads: 4 This Week
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