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Subject: Re: Tactical Test: Avoid move Bxb7

Author: Paul Richards

Date: 10:21:32 05/19/99

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On May 18, 1999 at 19:55:37, Gerrit Reubold wrote:

>
>Which programs are able to avoid Bxb7 in the following position (it is from one
>of my human-human games, though not actually reached)
>
>1r4k1/1ppq1pb1/3p2p1/1P2p2p/Q6P/4P1P1/P4PB1/1bB1K2R w K - 0 20
>
>avoid move Bxb7, because of Rxb7 Qa8+ Kh7 Qxb7 Qg4! -+ (threat Bd3)

Fritz 5.32 sees this line in a few minutes and evaluates it at -1.91.
Later it finds Bh3 and gives that about -1.66, later it decides Qb3
is better, but evaluates it at -1.56 at 15 ply.  I don't think this
is a great tactical test since white seems to be similarly losing no
matter what.  If there were a deep winning move for white it would
be a different story.



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