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Subject: Re: Why is this position so difficult to evaluate?

Author: Enrique Irazoqui

Date: 04:14:45 01/11/00

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This position is about the same theme.

[D] 8/4k3/4bpp1/7p/1p2p3/4P1PB/1P2P1KP/8 b - - 0 1

After 1.... f5, the bishop on h3 is blocked forever and black wins. Rebel and
Tiger play f5 immediately and stick to it. Shredder 4, Junior 6, Fritz 6, Hiarcs
7.32 and Nimzo 7.32 don't see f5 or pick it and drop it later. In these cases,
the difference between f5 and another move is of about 3/100 of a pawn, which
means they don't understand what it is all about.

This has to do with the Sherbakov game and why all programs failed to realize
the meaning of the bishop trapped on g6. The Sherbakov position is more complex,
but this f5 move looks so easy...

Enrique



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