Slashdot Mirror

← Back to Stories (view on slashdot.org)

World's Best Chess Engine Outlawed and Disqualified

Posted by samzenpus on from the cheaters-never-win-more-than-4-times dept.

An anonymous reader writes "Rybka, the winner of the last four World Computer Chess Championships, has been found guilty by a panel of 34 chess engine programmers of plagiarizing two open-source chess engines: Crafty and Fruit. The governing body of the WCCC, the International Computer Games Association, is even demanding that Rybka's author — the international chess master and MIT graduate Vasik Rajlich — returns the trophies and prize money that he fraudulently won. Rybka will no longer be allowed to compete in the World Championships, and the ICGA is asking other tournaments around the world to do the same."

3 of 315 comments (clear)

  1. Best chess engine by Arlet · · Score: 3, Interesting

    No Rybka, but Houdini:

    http://www.cruxis.com/chess/houdini.htm

    Rybka/Houdini played a 40-game match recently, and Houdini won by a wide margin of 23.5-16.5. You can see the match here:
    http://livechess.chessdom.com/site/ (Check for TCEC S1 Elite Match)

  2. Re:The obvious question by cultiv8 · · Score: 3, Interesting

    Unfortunately, Rybka’s source code has never been available, so reverse engineering and straight-up move-evaluation comparison was used to analyze the originality of Rajlich’s chess engine.

    I don't see how anyone can claim plagiarism if they haven't seen source code.

    --
    sysadmins and parents of newborns get the same amount of sleep.
  3. Re:The obvious question by devnull17 · · Score: 3, Interesting

    The same way that Google caught Bing ripping off search results a while ago: find some idiosyncratic behaviors (e.g. bugs) that serve no practical purpose and are highly unlikely to end up in two independent projects, and demonstrate the same weirdness in each.