Author: Rémi Coulom
Date: 11:06:48 06/04/05
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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
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