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Subject: Re: Why is this type of endgame position still so difficult??

Author: Uri Blass

Date: 23:57:57 06/12/01

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On June 13, 2001 at 01:51:34, Dieter Buerssner wrote:

>On June 11, 2001 at 01:31:14, Jouni Uski wrote:
>
>> 8/4k3/2K5/6p1/6B1/7P/8/8 w - -
>
>[...]
>>Hmm. Should this already be solved poblem?
>
>I think, if you can give a rule, under which conditions such positons -
>characterized as one side has a rook pawn and a "wrong" bishop and the other
>side has a pawn in the file next to the rook pawn - are drawn, it will soon be a
>solved problem for many chess engines :-)
>
>Yace would evaluate this position as draw, when the black pawn on g would be on
>any other file (and black would not be trivally winning, by promoting in the
>next move). However, how to handle this position, I have no idea. Any ideas are
>wellcome ...
>
>Regards,
>Dieter

I believe that every position when white has the wrong bishop when black has not
more than one pawn  is a draw if black can get into the corner or near the
corner because4 capturing the pawn with the pawn means stalemate.

Uri



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