Author: Rafael Andrist
Date: 00:52:47 10/16/01
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On October 16, 2001 at 03:42:46, martin fierz wrote: >On October 15, 2001 at 10:22:09, Rafael Andrist wrote: > >>[D]8/2p5/1pP3k1/1P3p2/8/5pP1/5P2/3K4 w - - bm Kc2; id "APE.704"; c0 "M. Sinar, 1983"; >> >>According to M. Sinar, White wins with Kc2. But after analyzing the position >>with chess programs (without TBs), I could not find a winning line. The score >>swaps between +2 and 0. What do other programs say? >> >>Rafael B. Andrist > >you have to realize that pawn endings which are about >corresponding squares are really zugzwang positions. maybe >it's that the null-movers are having trouble with this? > >cheers > martin Therefor Nullmove is not used in pawn endgames by most programs. IMO the problem is that it is possible to construct a co-ordinated squares system to win a pawn, but Black can reach a drawn KPQ-KQ endgame. Rafael B. Andrist
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