Author: Alexander Kure
Date: 13:07:12 11/16/99
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On November 16, 1999 at 15:38:24, Will Singleton wrote: > > >8/p1P1N3/p3b3/7K/1k4p1/6P1/8/8 w - - am c8=Q > >This position is drawn, but promoting the pawn loses. I think this is one of >those not too difficult positions for advanced programs, but if yours doesn't >find it, then perhaps there's some debugging to do. > >btw, I don't believe *any* program will evaluate this correctly (drawn). > >Will Seems your assumption is right at least for Nimzo. Here is the output after depth 12: New position 8/p1P1N3/p3b3/7K/1k4p1/6P1/8/8 w - - 0 1 Analysis by Nimzo 7.32: +- (2.29): 1.Kg5 a5 2.Nc6+ Kc5 3.Nxa7 Bd7 4.Kf6 a4 5.Ke7 Bf5 6.c8B +- (2.29): 1.Nc6+ Kc5 2.Nxa7 a5 3.Kg6 a4 4.Kf6 Bd7 5.Ke7 +- (1.66): 1.Kg6 Kc5 2.Kf6 Bd7 3.Ke5 a5 4.Nc6 Kxc6 5.c8N +- (1.57): 1.Kh4 a5 2.Kg5 a4 3.Kf6 Bd7 4.Ke5 Kc5 5.c8Q+ Bxc8 6.Nxc8 +- (1.57): 1.Kh6 a5 2.Kg7 Kc5 3.Kf6 Bd7 4.Ke5 a4 5.c8Q+ -/+ (-1.18): 1.Ng6 Kc5 2.Ne5 a5 3.Nxg4 a4 4.Ne3 a3 5.g4 a2 6.Nc2 -+ (-1.18): 1.Nd5+ Kc5 2.Nf6 a5 3.Nxg4 a4 4.Ne3 a3 5.Nc2 a2 6.g4 -+ (-2.68): 1.c8B Bxc8 2.Nc6+ Kc5 3.Na5 Kb5 4.Nb3 a5 5.Nd4+ Kc4 6.Nc2 -+ (-2.68): 1.c8Q Bxc8 2.Nc6+ -+ (-2.68): 1.c8R Bxc8 2.Nc6+ (Alexander Kure, Vienna 16/11/1999) At least no bug with promoting ;-) Greetings Alex
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