Author: Sune Larsson
Date: 02:00:55 06/24/01
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On June 24, 2001 at 04:31:11, Slater Wold wrote: >On June 24, 2001 at 03:40:46, Sune Larsson wrote: > >> >> [D]8/6kP/8/3b1PK1/8/6N1/8/8 w - - 0 1 >> >> In this position white wins with 1.Nh5+. If black takes >> the h7-pawn then the black bishop goes to heaven. >> >> When trying this position with Gambit Tiger, I got some >> strange output. In analyse mode it likes 1.h8B with a draw. >> Very puzzling indeed. >> >> >>Analyse by Gambit Tiger 2.0 >> >>00:00:00.3 2,98 12 96204 Nh5+ Kh8 Nf6 Bb3 Kf4 Kg7 Kg4 Bc4 Kg5 Bf7 Kh4 Bc4 >>00:00:00.0 3,08 12 110478 Nh5+ Kh8 Nf6 Bb3 Kf4 Kg7 Ke5 Bc2 Ke6 Bd1 Kd6 Bb3 Kc7 >>00:00:01.2 2,18 13 359519 Nh5+ >>00:00:02.1 1,56 14 620558 Nh5+ Kh8 Nf6 Bb3 Ng8 Kxh7 Ne7 Kg7 f6+ Kf8 Nf5 Be6 Nd4 >>Bg8 Kf5 Ke8 >>00:00:04.6 1,69 14 1174926 h8B+ Kxh8 Kf6 Bg8 Ke7 Kg7 f6+ Kg6 Ne4 Kf5 Nc3 Kg6 Ne2 >>Kf5 Nd4+ Ke5 Nc2 >>00:00:04.8 1,69 15 1388715 h8B+ Kxh8 Kf6 Bg8 Ke7 Kg7 f6+ Kg6 Ne4 Kf5 Nc3 Kg6 Ne2 >>Kf5 Nd4+ Kg6 Nc6 Kf5 >>00:00:06.5 1,69 16 1885192 h8B+ Kxh8 Kf6 Bg8 Ke7 Kg7 f6+ Kg6 Ne4 Kf5 Nc3 Kg6 Ne2 >>Kf5 Nd4+ Kg6 Nc6 Kf5 Nd8 >>00:00:09.4 1,71 17 2770718 h8B+ Kxh8 Kf6 Bg8 Ke7 Kg7 f6+ Kg6 Ne4 Kf5 Nc3 Kg6 Nd1 >>Kf5 Ne3+ Kf4 Kf8 Be6 Nc2 >>00:00:13.9 1,71 18 4108035 h8B+ Kxh8 Kf6 Bg8 Ke7 Kg7 f6+ Kg6 Ne4 Kf5 Nc3 Kg6 Nd1 >>Kf5 Ne3+ Kg5 Nc2 Kf5 Nd4+ >>00:00:20.5 1,73 19 6698978 h8B+ Kxh8 Kf6 Bg8 Ke7 Kg7 f6+ Kg6 Ne4 Kf5 Nd6+ Kg6 >>Nb5 Kf5 Nd4+ Kg6 Ne6 Kf5 Nc5 >>00:00:34.9 1,73 20 11655854 h8B+ Kxh8 Kf6 Bg8 Ke7 Kg7 f6+ Kg6 Ne4 Kf5 Nd6+ Kg6 >>Nb5 Kf5 Nd4+ Kg6 Nc6 Kf5 Nb8 >>00:01:44.2 1,73 21 36549655 h8B+ Kxh8 Kf6 Bg8 Ke7 Kg7 f6+ Kg6 Ne4 Kf5 Nd6+ Kg6 >>Nb5 Kf5 Nd4+ Kg6 Nc6 Kf5 Nd8 >>00:03:03.0 1,73 22 63301063 h8B+ Kxh8 Kf6 Bg8 Ke7 Kg7 f6+ Kg6 Ne4 Kf5 Nd6+ Kg6 >>Nb5 Kf5 Nd4+ Kg6 Nc6 Kf5 Nd8 >> >>Sune > >Sune, > >Here is my analysis - Dual PIII 1,000mhz Thanks, and all the three Deeps - Fritz, Junior and Shredder recognize that: 1) White is winning 2) It's a forced mate The Tigers don't, and have obvious and gross problems with this position. It should be easy because there are only a few pieces left. Maybe underpromotion is a problem for Tiger?! Sune > >~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > >Deep Fritz T29c >8/6kP/8/3b1PK1/8/6N1/8/8 w - - 0 1 > >Analysis by Deep Fritz T29c: > >1.Nh5+ Kh8 > +- (3.03) Depth: 1/6 00:00:00 >1.Nh5+ Kh8 > +- (3.03) Depth: 1/6 00:00:00 >1.Nh5+ Kh8 > +- (3.03) Depth: 1/6 00:00:00 >1.Nh5+ Kh8 > +- (3.03) Depth: 1/6 00:00:00 >1.Nh5+ Kh8 > +- (3.03) Depth: 1/6 00:00:00 >1.Nh5+! > +- (3.34) Depth: 2/6 00:00:00 >1.Nh5+ Kh8 2.Nf6 Bf3 > +- (3.50) Depth: 3/7 00:00:00 >1.Nh5+ Kh8 2.Nf6 Bf7 3.Kh6 > +- (3.66) Depth: 4/9 00:00:00 >1.Nh5+ Kh8 2.Nf6 Bf7 3.Kh6 Bc4 > +- (3.72) Depth: 5/11 00:00:00, tb=1 >1.Nh5+ Kh8 2.Nf6 Bf7 3.Kh6 Bc4 4.Kg6 > +- (3.75) Depth: 6/9 00:00:00 1kN, tb=3 >1.Nh5+! > +- (4.06) Depth: 7/13 00:00:00 3kN, tb=7 >1.Nh5+! Kh8 2.Kh6 Be6 3.f6 Bg8 4.hxg8Q+ > +- (4.97) Depth: 7/13 00:00:00 4kN, tb=8 >1.Nh5+-- > +- (4.59) Depth: 8/12 00:00:00 6kN, tb=13 >1.Nh5+-- Kh8 2.Nf6 Bf7 3.Kf4 Bc4 4.Ke5 Kg7 > +- (3.66) Depth: 8/14 00:00:00 10kN, tb=21 >1.Nh5+! > +- (3.97) Depth: 9/13 00:00:00 13kN, tb=42 >1.Nh5+! Kh8 2.Kh6 Be4 3.f6 Bg6 4.Nf4 Bf7 5.Ng6+ Bxg6 6.Kxg6 > +- (5.75) Depth: 9/14 00:00:00 15kN, tb=47 >1.Nh5+-- > +- (5.44) Depth: 10/14 00:00:00 18kN, tb=75 >1.Nh5+-- Kh8 2.Kh6 Be4 3.f6 Bg6 4.Ng7 Bf7 5.Nf5 Bd5 6.Nd6 > +- (4.00) Depth: 10/15 00:00:00 21kN, tb=83 >1.Nh5+! > +- (4.31) Depth: 11/15 00:00:00 27kN, tb=127 >1.Nh5+-- > +- (4.00) Depth: 12/17 00:00:00 41kN, tb=260 >1.Nh5+-- Kh8 2.Kh6 Be4 3.f6 Bg6 4.Nf4 Bf7 5.Nd3 > +- (3.91) Depth: 12/17 00:00:00 48kN, tb=279 >1.Nh5+! > +- (4.22) Depth: 13/16 00:00:00 61kN, tb=391 >1.Nh5+! Kf7 2.h8Q > +- (#20) Depth: 13/28 00:00:20 23971kN, tb=8702 > >(, 24.06.2001) > > >~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > >Deep Junior 6.0 >8/6kP/8/3b1PK1/8/6N1/8/8 w - - 0 1 > >Analysis by Deep Junior 6.0: > >1.Nh5+ Kh8 2.Kg6 Be4 3.Nf4 > +- (2.80) Depth: 6 00:00:00, tb=1 >1.Nh5+ Kh8 2.Kg6 Bc6 3.Ng7 Be4 > +- (2.78) Depth: 9 00:00:00 8kN, tb=8 >1.Nh5+ Kh8 2.Kh6 Be4 3.f6 Bg6 4.Nf4 Be8 5.Ne6 Bf7 6.Nd4 Bd5 > +- (2.85) Depth: 12 00:00:00 31kN, tb=99 >1.Nh5+ Kh8 2.Kh6 Be4 3.f6 Bg6 4.Nf4 Bf7 5.Nd3 Bd5 6.Ne5 Be4 7.f7 > +- (3.06) Depth: 14 00:00:00 55kN, tb=215 >1.Nh5+! > +- (3.36) Depth: 16 00:00:00 84kN, tb=356 >1.Nh5+! > +- (3.66) Depth: 18 00:00:00 142kN, tb=664 >1.Nh5+! > +- (3.96) Depth: 20 00:00:00 248kN, tb=1320 >1.Nh5+! Kxh7 > +- (#13) Depth: 20 00:00:11 22029kN, tb=6471 >1.Nh5+! Kxh7 > +- (#13) Depth: 20 00:00:11 22029kN, tb=6484 > >(, 24.06.2001) > >~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > > >Engine: Deep Shredder >by Stefan Meyer-Kahlen >position: 0 1 > 1.00 0:00 +0.01-- 1.h8Q+ Kxh8 (4) 0.0 > 1.00 0:00 +0.01 1.h8Q+ Kxh8 (21) 0.0 > 1.00 0:00 +2.02++ 1.h8R Kxh8 (22) 0.0 > 1.00 0:00 +2.02 1.h8R Kxh8 (23) 0.0 > 1.00 0:00 +2.06++ 1.Nh5+ Kf7 (38) 0.1 > 1.00 0:00 +3.03++ 1.Nh5+ Kh8 (48) 0.1 > 1.00 0:00 +3.28 1.Nh5+ Kh8 (57) 0.1 > 2.00 0:00 +3.50 1.Nh5+ Kh8 2.Kf6 Kxh7 (872) 2.6 > 3.00 0:00 +3.21-- 1.Nh5+ Kh8 2.Kf6 Kxh7 (998) 3.0 > 3.00 0:00 +3.21 1.Nh5+ Kh8 2.Kf6 Kxh7 (1.078) 3.2 > 4.00 0:00 +3.50++ 1.Nh5+ Kh8 2.Nf6 Bf7 3.Kh6 Bc4 (1.209) 3.6 > 4.00 0:00 +3.50 1.Nh5+ Kh8 2.Nf6 Bf7 3.Kh6 Bc4 (1.224) 3.7 > 5.00 0:00 +3.50 1.Nh5+ Kh8 2.Nf6 Bf7 3.Kh6 Bc4 (1.251) 3.8 > 6.00 0:00 +3.24-- 1.Nh5+ Kh8 2.Nf6 Bf7 3.Kg4 Ba2 4.Kf4 Bb1 (1.871) 5.7 > 6.00 0:00 +3.28 1.Nh5+ Kh8 2.Kh6 Ba8 (2.670) 8.1 > 7.01 0:00 +3.56++ 1.Nh5+ Kh8 2.Kh6 Be4 3.f6 Bd5 4.Nf4 Bc4 (3.340) 10.1 > 7.01 0:00 +3.56 1.Nh5+ Kh8 2.Kh6 Be4 3.f6 Bd5 4.Nf4 Bc4 (3.605) 10.9 > 8.01 0:00 +3.82++ 1.Nh5+ Kf7 (4.512) 13.7 > 8.01 0:00 +4.32++ 1.Nh5+ Kh8 2.Kh6 Be4 3.f6 Bb7 (5.766) 15.3 > 8.01 0:00 +5.65 1.Nh5+ Kh8 2.Kh6 Be4 3.f6 Bg6 4.Nf4 Be8 5.Ng6+ Bxg6 6.Kxg6 >(8.497) 18.7 > 9.01 0:00 +4.78-- 1.Nh5+ Kh8 2.Kh6 Be4 3.f6 Bg6 4.Nf4 Be8 5.Ne6 Bd7 (9.778) >18.9 > 9.01 0:00 +4.28-- 1.Nh5+ Kh8 2.Ng7 Kxg7 (10.836) 21.0 > 9.01 0:00 +4.31 1.Nh5+ Kh8 2.Kh6 Be4 3.f6 Bf3 4.Nf4 Bd5 (11.774) 22.8 > 10.01 0:00 +5.41++ 1.Nh5+ Kf8 2.h8Q+ Ke7 (13.391) 25.1 > 10.01 0:00 +4.84 1.Nh5+ Kh8 2.Kh6 Be4 3.f6 Bd5 4.Ng3 Bf7 5.Nf5 Ba2 6.Kg6 >(16.318) 21.7 > 11.01 0:00 +4.59-- 1.Nh5+ Kh8 2.Nf6 Bf7 3.Ne8 (18.779) 21.0 > 11.01 0:01 +4.30 1.Nh5+ Kh8 2.Kh6 Be4 3.f6 Bd5 4.Ng3 Bf7 5.Nh5 Ba2 (23.031) >22.6 > 12.01 0:01 +4.55++ 1.Nh5+ Kh8 2.Kh6 Be4 3.f6 Bf3 (26.998) 25.3 > 12.01 0:01 +5.07++ 1.Nh5+ Kh8 2.Kh6 Be4 3.f6 Bd5 4.Ng3 Be4 5.f7 Bg2 (33.466) >30.5 > 12.01 0:06 +M14 1.Nh5+ Kxh7 (2.869.688) 460.2 > 13.01 0:06 +M14 1.Nh5+ Kxh7 (2.892.523) 462.8 > 14.01 0:06 +M14 1.Nh5+ Kxh7 (2.927.427) 464.8 > 15.01 0:06 +M14 1.Nh5+ Kxh7 (2.947.265) 465.7 > 16.01 0:06 +M14 1.Nh5+ Kxh7 (2.966.707) 467.6 > 17.01 0:06 +M14 1.Nh5+ Kxh7 (2.986.265) 467.2 > 18.01 0:06 +M14 1.Nh5+ Kxh7 (3.011.017) 467.6 > 19.01 0:07 +M14 1.Nh5+ Kxh7 (3.025.202) 431.1 > 20.01 0:07 +M14 1.Nh5+ Kxh7 (3.039.994) 421.1 > 21.01 0:07 +M14 1.Nh5+ Kxh7 (3.053.768) 407.9 > 22.01 0:07 +M14 1.Nh5+ Kxh7 (3.069.826) 389.8 > 23.01 0:07 +M14 1.Nh5+ Kxh7 (3.086.262) 387.2 > 24.01 0:08 +M14 1.Nh5+ Kxh7 (3.102.703) 382.5 > 25.01 0:08 +M14 1.Nh5+ Kxh7 (3.119.339) 375.9 > 26.01 0:08 +M14 1.Nh5+ Kxh7 (3.135.176) 366.8 > 27.01 0:08 +M14 1.Nh5+ Kxh7 (3.149.553) 356.7 > 28.01 0:09 +M14 1.Nh5+ Kxh7 (3.164.002) 344.9 >best move: Ng3-h5 time: 0:09.203 min n/s: 343.849 CPU 122.2% nodes: 3.164.449 > TB: 24.537 >pb move: 1...Kxh7 > > >~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > >1 position, 1 computer, 3 programs. And 3 different evals! > >Interesting, eh? > > >Slate
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