Author: Tony Werten
Date: 05:52:56 06/22/01
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On June 22, 2001 at 07:49:55, Sune Larsson wrote: > > [D]8/p2B4/7p/k1p5/2P2p2/P1K1pP2/3nP2P/8 b - - 0 51 > > > This is a position from the game GM Hansen 2619 - IM Berg 2474, Sigeman > tournament, Malmo 2001. Good knight vs bad bishop. The way to win it for black > is a king walk to h4, therbye creating options for zugzwang. So it happened: > >51.-Kb6 52.Bh3 Kc7 53.Bg2 Kd6 54.Bh3 Ke7 55.Bg2 Kf6 56.Bh3 Kg5 57.Bg2 Kh4 >58.Kd3 Nb1 59.Ke4 Nxa3 60.Kxf4 Nc2 61.Ke4 a5 62.Bf1 a4 63.Kd3 Nd4 64.Kc3 a3 >and 0-1 > > > Test: Can your program win this position with black? The right move shouldn't be a problem, since the rest seems to loose. XiniX doesn't see the win BTW. (amd 333-32Mb hash) 7/11 0,084 1s 1...Kb6 2.h4 Kc7 3.Bf5 Kd6 4.Kd3 Ke5 8/11 0,052 1s 1...Kb6 2.h4 Kc7 3.Bf5 Kd6 4.Kd3 Ke5 5.Be4 9/12 0,074 1s 1...Kb6 2.h4 Kc7 3.Bf5 Kd6 4.Kd3 Ke5 5.Be4 a5 10/13 0,054 2s 1...Kb6 2.h4 Kc7 3.Bf5 Kd6 4 Kd3 Ke5 5.Be4 a5 6.a4 11/15 0,074 5s 1...Kb6 2.h4 Kc7 3.Be6 Kd6 4.Bd5 a5 5.Kd3 Ke5 6.a4 h5 12/17 0,018 10s 1...Kb6 2.h4 Kc7 3.Bf5 a5 4.a4 Kd6 5.h5 Ke5 6.Bg6 Nf1 7. Kd3 13/20 0,038 21s 1...Kb6 2.h4 Kc7 3.Be6 Kd6 4.Bd5 a5 5.a4 Nf1 6.Kd3 Ng3 7.Be4 Ke5 14/22 0,038 45s 1...Kb6 2.h4 Kc7 3.Be6 Kd6 4.Bd5 a5 5.a4 Nf1 6.Kd3 Ng3 7.Be4 Ke5 8.Bd5 Tony > > Sune
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