Open Source Linux Chess Engines
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Chess Engines for Linux
View 8848 business solutionsBrowse free open source Chess Engines and projects for Linux 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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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. -
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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.
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DreamChess
OpenGL chess game
A portable chess game consisting of an xboard-compatible OpenGL user interface with 2D and 3D board views and a chess engine. The primary targets are Windows, Mac OS X and Linux. -
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Crafty Chess Interface
free open-source chess engine interface
latest portable distribution: https://sourceforge.net/projects/craftychessinterface/files/crafty_gui_10.7z/download -
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Phalanx is a chess engine which understands the xboard protocol. It's suitable for beginner and intermediate players (I'm counting on your help to make it suitable for strong players!)
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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. -
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Mediocre is a Java-based chess engine, implementing features like LMR, SEE, history and killer moves heuristics, transposition tables, internal iterative deepening, PVS search etc.
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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. -
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pythchess
Python chess engine
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NetChess
NetChess to play between two players over net or internet
NetChess is a Graphical User Interface (GUI) for playing chess game. This software can be used To play chess between two players over network using TCP/IP (LAN) or in internet/intranet (Network vs Network) To send instant message (chat) while playing chess To observe the chess game played between two players over network To play chess between two players on the same board As PGN, FEN, EPD converter. This can be used To convert PGN to FEN or EPD format To convert FEG to PGN or EPD format To convert EPD to PGN or FEN format As PGN, FEN or EPD gave viewer. Load multiple games. This can also be used to load the games and analyze using chess engines To play chess using chess engines (Supports engines with WinBoard 1, 2 and UCI 1, 2 protocols) Human vs Chess Engine with White side Human vs Chess Engine with Black side Chess Engine with White side vs Chess Engine with Black side on the same board Chess Engine with White side vs Chess Engine -
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PasKnight
Chess engine written in Pascal with an UCI interface.
PasKnight is a UCI compatible chess engine. It does not have a graphical interface of its own; instead, it runs as a console application that communicates via text commands with a GUI (like Arena, CuteChess, or WinBoard). PasKnight is written in Pascal using Lazarus & Free Pascal compiler. Executables are provided for Windows, Linux and macOS. Elo of the engine v1.00rc21 is around 2620 -
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rodent chess
UCI chess engine
Rodent is an UCI chess engine based on Sungorus by Pablo Vazquez, 300 Elo stronger than its predecessor. It allows setting up different personalities and to adjust playing strength. -
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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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Super Micro Chess
The world's smallest chess playing program just got smaller!
Super Micro chess engines are a series of world record small source and executables programs able to play the famous "King's Game" (both with simplified and full FIDE support)! Please refer to the official home page for more details: http://smmax.sf.net. -
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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.
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ChessbrainVB
EXCEL VBA chess engine with chess board
VBA chess engine for EXCEL / WORD / POWERPOINT ( level: 2200 ELO ) with chess board GUI. Full EXCEL install needed (no viewers or OpenOffice) also: VisualBasic 6 compile for winboard (2750 ELO), needs a chess GUI like ARENA latest version here: https://github.com/RZulu54/ChessBrainVB/releases -
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Conqueror Chess Engine
A powerful chess engine written in C++
A powerful chess engine written in C++. It currently implements hybrid board representation, alphabeta pruning, quiescence search, static evaluation, legal move generator, iterative deepening, MVV/LVA move reordering, makemove, unmakemove and uci move representation standard, tapered evaluation. Elostat gives the current version an ELO of 2100 measured over 50 games. -
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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 -
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Chess-Stats
Chess Stats is a slightly different way to analyze your chess games.
Chess Stats uses Stockfish 17.1 to analyze any game in a pgn file. It then saves analysis and shows statistics for blunders and best moves for every move of the game. Interactive chessboard shows continuations from any selected move. From the interactive board you can step through the continuation or make new moves with the mouse. New moves calculate new possibilities. Python script developed with Python 3.1 on Linux Ubuntu 22 External libraries that are not part of the standard Python are included so that dependencies don't have to be dealt with by the end user. -
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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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Tyrannus
Tyrannus is a Chess GUI and Engine built in Java.
Tyrannus is not yet completely finished! I will continue to release updates as I make major strides towards completing the program. For updates on my progress, please visit my YouTube channel at: http://www.youtube.com/user/kolemannixtv Tyrannus vs. Tyrannus Demo: http://www.youtube.com/watch?v=JnZapogi5no Please Note: As of January 28, 2012, and the release of version 2.0, I, Koleman Nix, am still the sole programmer of Tyrannus. If anyone would like to work on this project with me, just send me a message and we can see about that. Latest Update: The Engine beats me easily now, and I have pre-programmed 4 different difficulties into the release of version 2.0. The idea is that 1.0 was a chess app, and 2.0 is a chess engine. Hope you enjoy playing against the engine! Good luck. -
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A concise javascript chess engine, first written for the 5k web competition. It plays at the level of a lazy amateur, so is a good match for most opponents.
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Cave Chess
A Java chess engine using xboard protocol