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Subject: Re: Draw due to lack of blockade detection...

Author: Vincent Diepeveen

Date: 08:34:39 10/04/02

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On October 04, 2002 at 11:26:51, Omid David wrote:

slowing down the search is not the problem. the problem i
explained in email to sargon

>On October 04, 2002 at 11:22:05, Vincent Diepeveen wrote:
>
>>On October 04, 2002 at 10:34:43, Omid David wrote:
>>
>>had fritz implemented such a scheme it would play 300 points weaker
>>anyway.
>
>It depends on how you implement it without slowing down the search
>significantly, and that's what I'm currently working on...
>
>It's obvious that applying the whole heuristic on each and every node is too
>expensive. But a wise application of it, could detect many draws without any
>significant impact on the total speed.
>
>Omid.
>
>
>>
>>>Just today we had a discussion regarding the importance of blockade draw
>>>detections http://www.talkchess.com/forums/1/message.html?255950
>>>
>>>Had Fritz implemented such a scheme, it wouldn't have stepped into the drawing
>>>variation.
>>>
>>>My engine instantly announced draw based on its blocked-draw detection
>>>heuristic. While Fritz never realized the draw...
>>>
>>>Omid.



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