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Subject: Re: Difficult position for programs, at least for Crafty.

Author: Dave Gomboc

Date: 16:05:06 08/09/99

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On August 09, 1999 at 12:24:56, Robert Hyatt wrote:

>On August 09, 1999 at 10:02:42, Bernhard Bauer wrote:
>
>>Hallo,
>>
>>recently I came across a position from a game
>>Haenninnen - Szabo, Wageningen.
>>
>>The position is
>>FEN: 3r1rk/pp1q2b/3p2pp/PP1Np2n/2Pp1p/B2P2Pb/3QPPBP/R4RK w
>>
>>The game went on
>>19. Bxd6 Bxg2
>>20. Bxf8 Qh3
>>21. Bxg7 f3
>>22. exf3 Bxf3
>>23. Ne3  Kg7
>>24. Qb4  Rd7
>>25. Ra2  Nf6
>>White resigned.
>>
>>Programs have difficulties to find out that 19. Bxd6 is bad.
>>The whole line seems to be difficult at least for Crafty.
>>BTW Crafty produces a lot of debug messages on a Sun, not on a PC.
>>
>>Enjoy
>>Bernhard
>
>
>What is "a lot of debug messages"?  If you are getting oddball error messages
>then something is definitely wrong...
>
>As far as the position goes, the end has a B on F3, Q on h3, which is a known
>"null-move" killer...

Would it be too costly to detect that there is a bishop on f3 and a queen on h3
and an unprotected g2 or h1 and decide to extend? :-)

Dave



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