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Subject: Re: Q: Fail High percentage

Author: Vincent Diepeveen

Date: 11:10:42 12/12/00

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On December 08, 2000 at 13:06:43, Robert Hyatt wrote:

Did you include qsearch positions with that Bob?

>On December 08, 2000 at 12:56:09, Peter Fendrich wrote:
>
>>I looking for a measurement for move generation performance.
>>
>>Do you think FH/CountNodes, where FH is number of times the first generated move
>>was a Fail High, is a good measurement?
>>Do you have some other?
>>What's your figures?
>>I get some 50% and I have a feeling it's to low.
>>
>>//Peter
>
>
>The critical statistic I measure in crafty is this:  "For any position where
>I 'fail high' (return a score >= beta) what percentage of the time does it
>happen on the _first_ move?"  I generally average 92%.  Anything over 90% is
>reasonable.  Anything less means move ordering needs work.



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