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Subject: Re: MVVLVA sorting does not help for move ordering

Author: Daniel Clausen

Date: 13:26:24 09/21/02

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On September 21, 2002 at 13:41:51, Sune Fischer wrote:

>On September 21, 2002 at 13:17:15, Sune Fischer wrote:
>>
>>Type of move / % of these moves in search / % cutoffs by these moves:
>>hash.......: 0.44% 93.35%
>>null.......: 27.91% 76.20%
>>wcap.......: 3.39% 67.11%
>>ecap.......: 0.45% 60.75%
>>lcap.......: 3.87% 22.38%
>>kill.......: 3.10% 22.34%
>>ncap.......: 60.84% 0.50%
>
>The above was done with a long analysis of a position,
>running a game changes things, the hash is worse but the capture
>sorting works better:
>
>hash.......: 1.09% 88.80%
>null.......: 21.35% 67.28%
>wcap.......: 4.97% 68.31%
>ecap.......: 0.43% 43.53%
>lcap.......: 4.53% 5.87%
>kill.......: 2.94% 15.29%
>ncap.......: 64.67% 0.43%
>
>Looks like killers should be tried before losing captures.
>
>-S.

Very interesting statustics, Sune! I'll have to do something similar in my
engine too.

Sargon



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