Computer Chess Club Archives




Subject: Re: Verified Null-Move Pruning, ICGA 25(3)

Author: Omid David Tabibi

Date: 09:31:43 11/20/02

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On November 20, 2002 at 12:05:09, Tony Werten wrote:

>On November 20, 2002 at 11:52:49, Gian-Carlo Pascutto wrote:
>>My very first thought after looking through this was:
>>'You note that Heinz R=2/3 appears to be superior to
>>R=2 and R=3, but you don't include it in the comparison.'
>From the data, I'd guess that both are about equal. I'll have a test after

The important difference is that verified null-move pruning on average yields
greater tactical strength than standard R = 2. The smaller your quiescence
search is, the better will be the performance of verified null-move pruning.



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