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Chess engine

Sjeng is a powerful chess program that also plays the bughouse, crazyhouse, giveaway, losers, and suicide variants of the game. It's fully compatible with XBoard/WinBoard and EBoard, and supports most advanced features like analysis-mode and board setup. It has beaten players rated over 2500 points, including several titled GM's and IM's. One version of Sjeng reached first place in the crazyhouse players list on the Internet Chess Club (ICC), and the first place on the Free Internet Chess Server (FICS). Its crazyhouse rating id generally around 2300 points. It is a bit weaker in bughouse than in crazyhouse. Most Sjeng's on the FICS have a rating of about 2000 points in bughouse, with a top of over 2200 points. For standard chess, Sjeng's rating is about 2450 ELO. In suicide and losers chess Sjeng beats all but the very best humans, and beats non-specialized programs easily.


User README included

Related Projects



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Verified by

Janet Casey

Verified on

27 November 2002

Leaders and contributors

Gian-Carlo Pascutto Maintainer
Georg von Zimmermann Contributor
Adrien Regimbald Contributor
Lenny Taelman Contributor
Ben Nye Contributor
Ronald De Man Contributor
Daniel Clausen Contributor
Tim Foden Contributor
Dann Corbit Contributor
David Dawson Contributor

Resources and communication

AudienceResource typeURI
Bug Tracking,Developer,
Debian (Ref)

Software prerequisites

This entry (in part or in whole) was last reviewed on 27 February 2018.


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