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Subject: Re: quiesce node explosion

Author: Anthony Cozzie

Date: 17:28:33 01/24/04

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On January 24, 2004 at 18:24:35, Uri Blass wrote:

>On January 24, 2004 at 17:58:54, Anthony Cozzie wrote:
>
>>On January 24, 2004 at 15:57:50, Mike Siler wrote:
>>
>>>In an average middlegame position, around 80-85% of the nodes my program
>>>searches are quiesce nodes. I have a static exchange evaluator and I only search
>>>captures with SEE value > 0. It seems like other engines are always under 25%
>>>qnodes. What else should I be doing to reduce these numbers?
>>>
>>>Michael
>>
>>Zappa has similar percentages.  Only engines that forward prune will have 30%
>>qnodes.
>>
>>anthony
>
>It is dependent on the definition of qnodes.
>
>Mike did not use the right definition but if I remember correctly  even tscp has
>not more than 30% qnodes based on the right definition.
>
>Engines that use checks and other moves in the qsearch may have more than 30% if
>they do not do a lot of pruning.
>
>Uri


It is difficult to see what definitions are possible other than

int quiescense(...)
{
   quiescense_nodes++;

}

anthony



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