Author: Kurt Utzinger
Date: 11:47:07 10/02/05
Go up one level in this thread
On October 02, 2005 at 14:19:12, Kurt Utzinger wrote: >On October 02, 2005 at 13:49:37, Will Singleton wrote: > >>White wins easily by promoting and exchanging queens, but most comps can't see >>it. >> >>[d]8/5p1P/8/8/6K1/5P2/1k6/q7 w - - >> >>Amateur failed to exchange queens, and drew the game. I'm not quite sure why, >>seems like a simple search should be enough to handle this. Oddly, if the >>exchange is forced, the win is seen immediately. This happens with other progs >>as well. I thought I had taken steps to eliminate root-position dependencies in >>the search, but maybe something else is happening. >> >>Will > ] Engine: SOS 5 for Arena (32 MB) von Rudolf Huber Engine: Ruffian 2.1.0 (32 MB) von Perola Valfridsson 12/27 0:01 +1.70 1.h8D+ Kb1 2.Dxa1+ Kxa1 3.Kg3 Kb2 4.Kf2 Kc3 5.Ke3 f6 6.f4 f5 7.Kf3 Kd4 8.Kg3 Ke4 (880.893) 823 13/30 0:03 +1.35-- 1.h8D+ (2.801.983) 798 13/32 0:41 +0.82 1.h8D+ Ka2 2.Da8+ Kb2 3.Db7+ Kc3 4.Dxf7 Dg1+ 5.Kf4 Dd4+ 6.Kf5 Dc5+ 7.Kg6 Dg1+ 8.Kh6 Db6+ 9.Kg7 Kd3 10.f4 Dd4+ 11.Df6 De3 (31.816.197) 766 14/33 0:56 +0.76 1.h8D+ Ka2 2.Da8+ Kb2 3.Db7+ Kc3 4.Dxf7 Dg1+ 5.Kf4 Dd4+ 6.Kg3 Dg1+ 7.Kh3 Dh1+ 8.Kg3 Dg1+ (43.706.786) 767 15/35 1:33 +1.11++ 1.h8D+ (71.601.090) 769 15/35 1:36 +2.05 1.h8D+ Ka2 2.Dxa1+ Kxa1 3.f4 Kb1 4.f5 Kc2 5.Kf4 Kd3 6.Ke5 Ke3 7.f6 Ke2 8.Kd6 Kd2 9.Ke7 Kc1 (74.282.975) 771 16/35 1:36 +2.40++ 1.h8D+ (74.503.524) 771 16/35 1:37 +5.77 1.h8D+ Ka2 2.Dxa1+ Kxa1 3.f4 Kb1 4.Kf5 Kc2 5.Ke5 Kd3 6.f5 Ke3 7.f6 Kf3 8.Kd6 Kg3 9.Ke7 Kg4 10.Kxf7 (75.717.909) 774 17/39 1:40 +5.77 1.h8D+ Ka2 2.Dxa1+ Kxa1 3.f4 Kb1 4.Kf5 Kc2 5.Ke5 Kd3 6.f5 Ke3 7.f6 Kf3 8.Kd6 Kg3 9.Ke7 Kg4 10.Kxf7 Kf4 11.Kg6 (77.860.161) 778 18/39 1:40 +6.12++ 1.h8D+ (78.368.387) 779 18/41 1:44 +6.77 1.h8D+ Ka2 2.Dxa1+ Kxa1 3.f4 Kb1 4.Kf5 Kc2 5.Ke5 Kd3 6.f5 Ke3 7.f6 Kf3 8.Kd6 Kg3 9.Ke7 Kg4 10.Kxf7 Kf5 11.Ke7 (81.888.015) 785 19/43 1:52 +6.87 1.h8D+ Ka2 2.Dxa1+ Kxa1 3.f4 Kb1 4.Kf5 Kc2 5.Ke5 Kd3 6.f5 Ke3 7.f6 Kf3 8.Kd6 Kg4 9.Ke7 Kh5 10.Kxf7 Kh6 11.Ke7 Kg6 12.f7 (89.487.198) 797
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