Chess Program Released for Linux and Mac
lrnzcpmn writes "Today, the world champion chess program Schredder released a version for Mac and Linux. This is important because it is the first time a major software player in the chess world has released a version of its chess engine for Linux and the general public. You can download a demo version on shredderchess.com."
Zappa has beaten Shredder in competition, but not during speed chess. Five days later, Zappa was named the 2005 World Computer Chess Champion.
Download earlier Zappa engines from here
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First major player!?
Crafty's been available for linux for over a decade. It has always been a major player and still wins the occassional tournament (including CCT6). It's free and source is available to boot.
get from ftp://ftp.cis.uab.edu/pub/hyatt
Rebel's been available for linux for a couple of years
Fruit came second in the latest WCCC (above shredder). It was GPL (decided to go commercial after that result), but the GPL version from a couple of weeks before the tournament can be gotten from http://wbec-ridderkerk.nl/ (download section)
And as mentioned in a prior comment, version 1.1 of Zappa (version 2 is current WCCC champion) is available free for linux.
Ruffian is another very strong (top 10) engine, also available for linux.
(btw, it's Shredder, not Schredder)