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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.



Verified by

Verified on




Verified by

Janet Casey

Verified on

27 November 2002

Leaders and contributors

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

Resources and communication

AudienceResource typeURI
Bug Tracking,Developer,
Debian (Ref)

Software prerequisites


"Debian (Ref)" is not in the list (General, Help, Bug Tracking, Support, Developer) of allowed values for the "Resource audience" property.

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