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Subject: Re: King Safety ??

Author: Uri Blass

Date: 13:31:55 12/25/02

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On December 25, 2002 at 16:18:20, Scott Gasch wrote:

>On December 25, 2002 at 13:09:45, Sune Larsson wrote:
>>
>> 5rk1/1ppq1rb1/p2p1nn1/3Pp3/2P1Ppp1/PPN3P1/3BQPB1/2R2RK1 w - - 0 25
>>
>...
>>
>> CM 9000Utz12    25.Qd3   -0.15   Ply 14      64 Mb hash
>> Shredder PB     25.Qd3   -0.28   Ply 14     128 Mb hash
>> Hiarcs 8        25.Qd3   -0.55   Ply 13     128 Mb hash
>> Fritz 8         25.Qd3   -0.59   Ply 14     128 Mb hash
>> Ruffian         25.Qd3   -0.69   Ply 14     128 Mb hash
>> Chess Tiger14   25.Bh1   -1.50   Ply 14      96 Mb hash
>> GambitTiger 2   25.Qd3   -2.26   Ply 14      96 Mb hash
>>
>
>  Monsoon                  -1.17 for white    static eval at root
>  Monsoon        25. Qd3   -4.18   Ply 14     512 Mb hash
>
>If possible, monsoon is too pessamistic about this position?  It is unhappy with
>white's position when I run a static evaluation of the position and when I let
>it search it gets worse and worse.  By ply 14, as you can see, it's much more
>unhappy than any of these better engines.

Can you explain how do you get -1.17 static evaluation?

material is equal and no squares near the king are attacked by black pieces.
I also do not see significant mobility advantage for black(white has 31 moves
and after Qd3 black has 34 moves).

A possible reason to see big adantage for black is mobility of the bishop after
f3 Bh1 but you need 2 plies for that and you cannot see it by static evaluation.

Uri



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