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Subject: Re: Node count explosion

Author: A. Cozzie

Date: 15:05:37 09/03/05

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On September 03, 2005 at 15:41:48, Mridul Muralidharan wrote:

>[D]r2q3r/1b1k1pbp/p4np1/2BP1pN1/p1B5/P1Q5/1PP3PP/R3K2R w KQ - 0 19
>
>My engine royally blows up when it comes to this position (arrived at a game
>against some engine a long while ago).
>I suspected excessive extensions , qsearch problems , eval inconsistencies ,
>bugs , etc.
>Could not find any bugs and there were no obvious others problems ... the
>position just kills the node count.
>Analysed it with other engines and most if not all had similar problems.
>
>I have not done an actual position analysis of the position with a strong player
>(that is tactics , positional aspects , etc - just analysed the stats that my
>engine dumps for this pos).
>
>Any comments ?
>
>Thanks,
>Mridul

Hmm, Zappa too.  13 ply with its 'Columbus's peanut' settings (SE+history
pruning) in 1 minute with *4* processors is pretty bad.

anthony



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