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Subject: Re: Shredder wins in Graz after controversy

Author: Robert Hyatt

Date: 07:01:15 12/09/03

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On December 09, 2003 at 09:49:47, Gian-Carlo Pascutto wrote:

>On December 09, 2003 at 09:25:55, Sune Fischer wrote:
>
>>I think the logic is quite clear, Jonny lost on purpose because he didn't feel
>>Shredder should lose the WCCC due to a silly bug:
>>
>>"Apparently the Shredder interface contained a bug which allowed it to repeat
>>postitions in a totally winning position. The program Jonny had seen this and
>>claimed the draw (while displaying a 0.00 score). But as Johannes Zwanzger >later said on the Playchess.com server: "I did not want to draw the game in
>>this way against Stefan, just because his program has a bug." So he had simply
>>executed the move on the board, entered Shredder's reply and continued with
>>the game."
>>
>>So basicly "Jonny" (the engine) saw Shredder had bugged out and instantly
>>punished it by going for the repetition.
>
>Your version of the facts is wrong on several accounts:
>
>1) The bug was not in the Shredder interface or if it was, that wasn't
>critical since it's the engine that repeated the position, not the interface.
>
>2) The engine Jonny had not claimed a draw (it didn't know about 3 fold
>repetition), only the ChessBase GUI that Mr. Zwanzger was using informed
>that the position was repeated 3 times.
>
>--
>GCP


However, the ICCA / ICGA rules to _not_ differentiate between the GUI and
the engine.  The rules only address "the computer chess player".

The decision was bogus.



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