Author: Roman Hartmann
Date: 01:08:22 12/31/05
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On December 31, 2005 at 03:55:39, Uri Blass wrote: >On December 31, 2005 at 03:34:04, Kurt Utzinger wrote: > >>Please post the FEN string of the position >>you are talking about. Many thanks in advance. >>Best regards >>Kurt > >[D]7n/5p2/5Np1/5pP1/5pbB/5k2/5Pr1/3K3B w - - 0 1 > >of course this is zugzwang problem and some null movers can see nothing here. Yes, thats definitely a null move problem here. You can check this by disabling null move (i.e. with crafty). >1.Ke1 Bh3 2.Kf1 Bg4 3.Bxg2# > >I believe that most of the programs can find it. > >I tested 16 engines > >6 could not see the mate: > >1)Crafty19.19 >2)Fritz6 Light >3)Fruit2.1 >4)Glaurung Mainz >5)Rybka1.0 beta32bit >6)TogaII0.93 the following engines don't find the mate either: List 512 Fritz 5.32 Fritz 9 Aristarch Roman >10 could see the mate: >1)Comet >2)Fritz8 >3)Fruit2.2 >4)GambitFruit1.0beta4x >5)Junior7 >6)prodeo1.0 >7)Shredder9 >8)Toga1.1 >9)Yace >10)Movei > > >I am surprised if Deep Fritz8 cannot find it because my fritz8 has no problem to >find it. > >Uri
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