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Subject: Re: endgame position

Author: Robert Hyatt

Date: 07:04:42 11/13/01

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On November 13, 2001 at 09:57:20, Jon Dart wrote:

>This occurred in a testgame, Yace vs. Arasan:
>
>[D] 8/4kp2/4p3/p2pP2n/Pp2nPp1/1P2P1P1/2K1N3/4B3 b - -
>
>Yace played f6! and won. The current released version of Arasan (5.4) takes a
>long time to find this. My latest development build takes about 25 seconds on an
>Athlon 1.3GHz. Crafty 18.10, however, selects it instantly and sticks to it.
>
>I haven't had time to analyze this yet. Is there some obvious piece of knowledge
>that makes the solution easy for some programs, hard for others?
>
>--Jon


Blocked pawns.  It may be that other moves are also just fine, so long as
f6 gets played at the right point.



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