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Subject: Re: Evaluation testposition

Author: Andrew Williams

Date: 14:26:01 03/20/02

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On March 20, 2002 at 13:17:36, Scott Gasch wrote:

>On March 20, 2002 at 12:59:58, Gian-Carlo Pascutto wrote:
>
>> 4r1k1/pp2q1p1/2p1P1Q1/3p4/6R1/P7/KPP5/8 w - - 0 17
>>
>>I get a static eval of +3.7 here, which drops a little
>>bit after searching a minute or so (to +3.2).
>>
>>Shredder Paderborn stays around +0.5 - +0.7
>>
>>Fritz 7: about +1.2 to +1.4
>>
>>Crafty 18.13: +0.30 to +0.40
>>
>>Comet B41: rises to about +1.5
>>
>>Hiarcs 7.32: rises to about +1.0
>>
>>ChessTiger 14.0: starts from 0 and goes to +0.40
>>(Gambit Tiger very similar)
>>
>>Gandalf 5.1: +1.0 to +0.80
>>
>
>Wow.  My static eval for white here is -0.5 pawns.  With a search the engine
>thinks it can force a draw and is happy to do so.  As for _how_ I evaluate it,
>the major component of the eval is the white passer.  However it's blockaded by
>an enemy piece sitting on a square controlled by the enemy so it has no prospect
>of advancing.  That chops down the bonus to that passer severly.  I do give some
>credit to white for aiming its rook/queen at the enemy king but monsoon does not
>understand the mate threat it poses.  I think my eval here is just as skewed as
>sjeng's, just in the opposite direction.  Do you actually evaluate the mate
>threat?
>
>Scott

Statically, PM thinks this is -0.70 for White. After a minute's search it says
+0.35 for white.

Andrew



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