Author: Eran Karu
Date: 13:24:42 06/04/05
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On June 04, 2005 at 14:06:48, Rémi Coulom wrote: >On June 04, 2005 at 13:07:29, Ernest Bonnem wrote: > >>[D]6n1/3p4/8/1P1Pk1n1/4P3/B5K1/8/8 w - - >> >>White to win >> >>Here Shredder 9 UCI cannot find the "simple" b6! even at depth 36/61 (searching >>more than 2 hours on my computer) >> >>b6 is found almost immediately by all other programs I tried (Fritz 7, Tiger, >>Pharaon,...) >> >>Has anybody an explanation ? > >null move hides a zugzwang, maybe. After b6 Nxe4+ Kh4 Nd6 Bxd6+ Kxd6 Kg5, black >is in zugzwang, if I understand correctly. > >It is really not very wise to do the null move in such a situation. I would find >it strange if Shredder has such a hole. So Shredder's problem may be a little >more subtle. It is hard to guess. > >Rémi [D]6n1/3p4/8/1P1Pk1n1/4P3/B5K1/8/8 w - - When my Shredder 9 UCI program analyzed that position above, I tweaked its engine options and nothing helped so far! :-( Eran Karu
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