RubiChess is a very strong UCI-compliant chess engine. RubiChess is free and open source software which plays a very strong game.
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Lc0 – Leela Chess Zero – neural network based chess engine
Leela Chess Zero (Lc0) is a neural network based chess engine. It needs a chess GUI to use beside it.
Read moreStockfish – strong open source chess engine
Stockfish is an open source chess engine derived from Glaurung 2.1. It is not a complete chess program.
Read moreRaptor – chess interface for FICS
Raptor is an open source, multi-platform chess interface for the Free Internet Chess Server (FICS).
Read moreJin – graphical client for chess servers
Jin is an open source, cross platform, graphical client for chess servers, written in Java.
Read moreeboard – chess board interface for ICS and chess engines
eboard is a chess interface based on the GTK+ GUI toolkit. It provides a chess board interface to ICS (Internet Chess Servers) like FICS.
Read morePyChess – free gtk chess client
PyChess is a Gnome inspired chess client written in Python. The goal of PyChess, is to provide a fully featured, nice looking, easy to use chess client
Read moreXBoard – graphical user interface for chess
XBoard is a graphical user interface chessboard for chess engines under the X Window System.
Read moreChessX – chess database and FICS client
ChessX is chess database software. Operate on your collection of chess games in many ways: browse, edit, add, organize, analyze, and more.
Read morecli-chess – play chess in your terminal
cli-chess is a command-line chess program that lets you play online against human players and offline against the computer.
Read moreBest Free and Open Source Alternatives to Apple Chess
Apple Chess is a traditional chess game played on a well rendered board with a set of realistic 3-D pieces. We recommend the best free and open source alternatives.
Read more6 Best Free and Open Source FICS Chess Clients
Free Internet Chess Server is a server for chess players to play against each other over the Internet.
Read more12 Strong Free and Open Source Chess Engines
Computer chess has been a phenomenal success, aiding chess analysis, and allowing players to play when no human opponents are available.
Read more10 Best Free Linux Chess Apps (Updated 2021)
Linux chess software generally is separated into a “front end” application and a “chess engine”. There is a wide range of chess-playing software for Linux which can defeat most master players under tournament conditions.
Read moreLucas Chess – play and train chess
Lucas Chess is a chess GUI. It lets you play against lots of chess engines and train to improve your game.
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