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Subject: Re: u2600 Position of the Week

Author: Bruce Moreland

Date: 15:44:51 03/01/99

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On March 01, 1999 at 15:46:14, Will Singleton wrote:

>Well, that's an unexpected result.  I ran this on Hiarcs, and after the
>continuation (as above), it still has white down well over a pawn.
>
>So that begs the question, does Lambchop or Ferret actually see that the
>position is drawn?  Can a tablebase tell you that?

After 1. Rxf5 Rxf5 2. Bxf5, black has to move somewhere and white simply plays
Rxe2 on the next move, so you get Kxe2.

The resulting KBP vs KR is drawn.

The machine with the 5-man tables is busy right now.  I did a probe to check to
see that the position is drawn, but I can't check to see if a version actually
using them at the tips knows for sure that that ending is drawn, but another
version, which only has 4-man tables at its disposal, thinks it can get rid of
the h-pawn, leading to a drawn KR vs KB.

So yes, when I run this I get a contempt score back.

If the position really isn't drawn I'm sure it will come to light and I'll look
slightly stupid.

bruce



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