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

Author: Peter Kappler

Date: 09:10:10 01/11/00

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On January 11, 2000 at 04:34:27, Dann Corbit wrote:

>On January 11, 2000 at 04:02:27, Peter McKenzie wrote:
>
>>On January 10, 2000 at 22:41:51, Dann Corbit wrote:
>>
>>>
>>>Sierwan talks about exactly this kind of position in one of his books.  The
>>>tactics one, IIRC.
>>
>>Please post one or two of his positions if you have the book handy
>I loaned all of my chess books to one of my friends (another would-be chess
>program author).  However, I do recall that Sierwan talks about it at length,
>and even demonstrates positions where you can remove the bishop from the board
>with no effect.  It is obviously something he strives for in a game.
>
>It might have been the strategy book.  Anyway, here is a fairly obvious example
>of the principle:
>[D]r1k2br1/p7/Pp1p3p/1PpPp1pP/2P1PpP1/1K3P2/8/8 b - -
>
>Black is "up" 13 but if the bishop were a different color, the whole game
>changes instantly.  As it is, it is an obvious draw.
>
>This is the garden variety "bad bishop" but any variation on this theme will
>render the bishop useless (as in the game at hand).


No response, just wanted to see the diagram...

--Peter



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