Author: Steffen Jakob
Date: 05:38:02 03/02/99
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On March 02, 1999 at 08:13:02, Robert Hyatt wrote: >On March 01, 1999 at 18:44:51, Bruce Moreland wrote: > >> >>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 > > >nope.. you are correct... dead draw: > > 8 1.34 -0.37 1. Rg8 Kf2 2. Rgg1 f4 3. Rh1 f3 4. > h4 Rh5 > 8 2.48 0.00 1. Rxf5+ Rxf5 2. Bxf5 Kf2 3. Rxe2+ > Kxe2 <EGTB> > 8-> 3.20 0.00 1. Rxf5+ Rxf5 2. Bxf5 Kf2 3. Rxe2+ > Kxe2 <EGTB> > 9 4.19 0.00 1. Rxf5+ Rxf5 2. Bxf5 Kf2 3. Rxe2+ > Kxe2 <EGTB> > 9-> 6.49 0.00 1. Rxf5+ Rxf5 2. Bxf5 Kf2 3. Rxe2+ > Kxe2 <EGTB> > 10 7.33 0.00 1. Rxf5+ Rxf5 2. Bxf5 Kf2 3. Rxe2+ > Kxe2 <EGTB> What is crafty's evaluation without tablebases? :-) Greetings, Steffen.
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