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Subject: Re: Comet vs Diep from Paderborn

Author: Howard Exner

Date: 20:47:10 02/10/00

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On February 10, 2000 at 23:11:02, Robert Hyatt wrote:

>On February 10, 2000 at 22:22:02, Howard Exner wrote:
>
>>[D]8/4k3/2bq4/1p6/p6P/P5P1/1P2QP1K/8 b - - id Comet - Diep;
>>
>>Is this a tough choice for a computer to make? Diep played Qe6 and Comet went on
>>to win.
>>What do other programs prefer here? Seems that in this case leaving the Queens
>>on would benefit black or at least exchanging them under more favourable
>>circumstances.
>
>
>This game was a dead draw until Diep played Kf7 rather than Kg6 a few moves from
>this point.  Crafty saw that turning into a KPP vs KB ending that the tablebases
>said was 'drawn'.  I think vincent's program thought (for reasons unknown) that
>KB vs KPP was lost for the KB, so he wouldn't go for that.
>
>I had crafty analyzing during the game, and until he played Kf7 the score was
>zero.  After Kf7 my score jumped to +2.5 and kept going.  within 5 moves it
>was at +10 or so...

This is the position later in the game that you refer to.

[D}8/8/5k1P/1p6/p4PP1/P5K1/1P2b3/8 b - - id Comet - Diep; am Kf7;



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