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

Author: Omid David

Date: 08:26:51 10/04/02

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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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