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Subject: Re: Shredder wins in Graz after controversy

Author: Amir Ban

Date: 15:01:10 12/09/03

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On December 09, 2003 at 10:02:43, Sune Fischer wrote:

>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.
>
>I just quoted that from chessbase (from the link posted), I suspect it was the
>engine also.
>If it can somehow be documented it was in fact the interface, maybe that would
>change things since Shredder would technicly be innocient.
>
>>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.
>
>It had a draw score and played the drawing moves, so its intention was clear.
>The engine wanted the draw and the operator didn't allow it, that's the way I
>see it.
>
>Maybe the reason for the engine not claiming the repetition itself is because
>it's playing in a GUI that does it for it.
>
>Imagine the dilemma poor Jonny must have faced here, I'm glad it wasn't me that
>had to choose between being a good sport and grabbing an extra half point.
>

He chose a third course: he went to the TD, told him the interface was
announcing 3-fold repetition, and asked for permission to continue playing.

However, the TD did not understand his question at the time.

Amir


>I think the rules should protect operators in the future so they don't feel
>obligated to throw the game in this manner.
>
>my 0.02,
>-S.
>>--
>>GCP



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