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Stockfish is a free, powerful UCIchess 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.
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/...
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Dieses Projekt entstand im Rahmen der Vorlesung Graphische Datenverarbeitung an der Hochschule für Technik Stuttgart. Geplant war ein visuell ansprechender Client für Schachengines die das Universal Chess Interface Protokoll unterstützten. Dieses Ziel wird derzeit noch verfolgt ;)
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.
This project aims to provide a fast chess bot able to recognize moves and respond to them via use of an external UCI-engine, such as - preferrably - Rybka 2.9.
Check out a live demo here: https://vimeo.com/128428976
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.
High detail 3D chess program capable of communicating with any UCI compatible AI engine. A variety of textures and backgrounds allows for a unique chess adventure.
Chess Wizard is a powerful chess software to play, study, edit and publish games. It supports many strong UCI engines, provides a huge online database and hundreds of puzzles. Chess960 is available now.
Braincrack is a chess engine I wrote in my high school time. It is capable of being used with the Winboard protocol and via Winboard->UCI conversion tools within professional chess GUIs like Chessbase.
Simontacchi is a Winboard/UCI compatible chess engine that intends to grow via development community involvement. The goal of the project is to create a chess engine that rivals the strongest commericial and amateur programs.
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.