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Subject: Re: Shredder wins in Graz after controversy

Author: Frank Phillips

Date: 14:38:11 12/09/03

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On December 09, 2003 at 16:45:37, Sandro Necchi wrote:

>On December 09, 2003 at 15:14:00, Frank Phillips wrote:
>
>>On December 09, 2003 at 14:45:25, Gian-Carlo Pascutto wrote:
>>
>>>On December 09, 2003 at 10:16:51, Frank Phillips wrote:
>>>
>>>>This is too subtle for me.  It is an event between machines with the operator
>>>>acting as a go between (a mistake in my view).  The machine said draw, >therefore the operator must claim the draw.  As far as I can see it just
>>>>another 'move' indicated by the machine and the operator has no right to move
>>>>for the machine.
>>>
>>>By the same reasoning, the machine claimed the draw incorrectly, so
>>>the operator has no right to claim the draw correctly, so he had no choice
>>>but to play on (or resign).
>>>
>>>QED
>>>
>>>--
>>>GCP
>>
>>I do not understand what you are saying.
>>
>>My point is based on the following:
>>
>>1.The contest was between machines.
>
>No, between chess engines.

;-)

>
>>2.The machine in question was the entity that was the engine plus the chessbase
>>GUI.
>
>OK, but the engine was playing, not the chess GUI.

This where we part company..... (It chose book moves, I believe.).


>
>>3.It would have been better if the machines played without human interference,
>>but failing this the operator should not have been able to influenece the
>>result.
>
>This was allowed as the operator should have been the one to ask the TD to be
>allowed to resign...see Darsen post which is complete...
>
>>4.The machine claimed a draw (ie its 'move' was draw).
>
>No, the machine did not claimed a draw. The GUI advised that there was a 3-moves
>repetition. This is not a draw claim.
>Since the programmer can set the draw value in it's program. If the setting is
>accept a draw only when the score is -50, than the GUI showing a 3 moves
>repetition would be ignored by the engine...so this is not a draw claim, but
>only a info display...
>It is therefore wrong to claim that an info advising a 3 moves repetions is an
>automatic draw. The program should state clearly "I am going to play "..." which
>will draw the game according to FIDE rule..." this was not done...so the
>operator could not force the draw, nor ask for it...
>
>>5.Therefore a draw should have been the result.
>
>No, see above...
>
>>
>>So I have missed the point as to why the machine claimed the draw incorrectly.
>
>Did not claim a draw at all!
>
>>I was working on the premise that the GUI (part of the entered machine) said
>>draw (point 4).  Is this wrong?
>
>Yes, I hope now it is clear.
>>
>>Frank
>
>Sandro



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