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Subject: Re: Is this draw?

Author: Dann Corbit

Date: 17:13:27 10/10/01

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On October 10, 2001 at 08:30:26, James T. Walker wrote:

>On October 10, 2001 at 05:51:07, Uri Blass wrote:
>
>>On October 10, 2001 at 04:36:47, Jouni Uski wrote:
>>
>>>[D]5r1k/4R2P/8/5BK1/8/8/8/8 w - - 0 96
>>>
>>>Crafty evaluates +8, but plays draw after 50 move rule! I have here only 4 piece
>>>TBs.
>>>
>>>Jounu
>>
>>I believe that crafty has not the relevant knowledge(I do not know if there are
>>programs that have it).
>>
>>I have an experience from a tournament game when I drew a game in a similiar
>>position when my opponent had bishop and pawn adavntage.
>>
>>I think that the relevant knowledge should say that KRBP vs KR usually win when
>>the only exception is when the bishop is the wrong bishop(does not control the
>>corner promotion square) and the pawn is on the 7th rank.
>>
>>In this case the evaluation should be closer to draw because I believe that at
>>least in big part of these cases it is a draw.
>>
>
>
>While playing Gambit Tiger 2.0 vs Junior 7.0 I had the same type position show
>up.
>[D]4r2k/1R5P/6BK/8/8/8/8/8 w
>
>It ended with the 50 move rule with the black rook chasing the white rook around
>the board trying to make white capture the rook.

It seems to me (for both positions) we ought to be able to end up with a
position like this:
[D]2r3Rk/7P/7K/8/8/1B6/8/8 w - -
which is a clear win.

What prevents it?



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