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Subject: Re: What is the correct evaluation of this position?

Author: Andrew Williams

Date: 02:24:57 04/06/00

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On April 05, 2000 at 12:59:30, Mark Ryan wrote:

>Leko (2670) - Beliavsky (2690), Madrid 1998
>
>[D]3q1kr1/3n1p2/2p3p1/p2pPB2/3P4/2P1K1Q1/Pr3P2/6RR b - -
>
>Leko:  "Thanks to my good structure and the light-squared bishop my king is safe
>in the centre, whereas the black king has nowhere to go."  Beliavsky played
>29...Nb6, after which Leko says White has "the upper hand".  However, after 5
>minutes of analysis each, before and after 29...Nb6, the position is evaluated
>as equal by my aging programs, Fritz 5.32, Comet B02, Doctor 3.0, and Crafty
>16.6 (I really should upgrade these old war horses); Hiarcs 7.32 gives White a
>slight advantage.  [Leko won the game six moves later.]
>Cheers,
>Mark

I find this position really interesting. PostModernist's static evaluation
of the position is +1.47 for White, which is mostly based on  Black's
King position. This sounds reasonable (even a little conservative) given the
outcome of the game.

But a d12 search from this position indicates that White is winning by only
0.33 or so. Certainly PM has no inkling of Black's impending doom. I'd be
interested in the static evaluation of this position by other programs.

Andrew



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