Author: Steven J. Brann
Date: 05:56:35 06/24/01
Go up one level in this thread
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 Chessmaster 8K with custom personality w/16MB hash on PII 933 finds Nh5+ initially. Then ultimately finds Mate14 after 14:30. Time Depth Score Positions Moves 0:00 5/10 3.35 59105 1. Nh5+ Kh8 2. Kg6 Bc4 3. Nf6 Bf7+ 4. Kh6 Be6 5. Kg5 Bc4 6. Kg4 Bb5 0:00 6/11 3.87 101564 1. Nh5+ Kh8 2. Kh6 Be4 3. f6 Bg6 4. Nf4 Bf7 5. Nh3 Bc4 6. Ng5 Bd5 7. Kg6 0:00 7/12 6.69 173422 1. Nh5+ Kh8 2. Kh6 Be4 3. f6 Bg6 4. Nf4 Bh5 5. Kxh5 Kxh7 6. Ne6 Kg8 7. Kg6 Kh8 8. Kf7 Kh7 0:02 8/13 10.63 646604 1. Nh5+ Kxh7 2. Nf6+ Kg7 3. Nxd5 Kf7 4. f6 Kg8 5. Kg6 Kf8 6. Nf4 Kg8 7. f7+ Kf8 8. Ne6+ Ke7 9. f8=Q+ Kxe6 10. Qe8+ Kd6 11. Kf5 Kc7 12. Qe5+ Kc8 0:04 9/14 13.49 1076995 1. Nh5+ Kxh7 2. Nf6+ Kg7 3. Nxd5 Kf7 4. f6 Ke8 5. Kg6 Kf8 6. Nc7 Kg8 7. f7+ Kf8 8. Ne6+ Ke7 9. Ng5 Kd7 10. f8=Q Kc6 11. Qe8+ Kb6 12. Qe5 0:17 10/15 13.66 3603754 1. Nh5+ Kxh7 2. Nf6+ Kg7 3. Nxd5 Kf7 4. f6 Ke6 5. Nf4+ Kd6 6. Kf5 Kd7 7. Ng6 Kc6 8. f7 Kb5 9. f8=Q Ka4 10. Qc5 Kb3 11. Qd5+ Kb2 12. Qd4+ Ka2 0:37 11/16 13.74 7560492 1. Nh5+ Kxh7 2. Nf6+ Kg7 3. Nxd5 Kf7 4. f6 Ke6 5. Nf4+ Kd6 6. Kf5 Kd7 7. Ng6 Kc6 8. f7 Kb5 9. f8=Q Ka4 10. Qc5 Kb3 11. Ne5 Ka2 12. Qc3 1:28 12/17 13.74 18001781 1. Nh5+ Kxh7 2. Nf6+ Kg7 3. Nxd5 Kf7 4. f6 Ke6 5. Nf4+ Kd6 6. Kf5 Kd7 7. Ng6 Kc6 8. f7 Kb5 9. f8=Q Kc4 10. Ne5+ Kb3 11. Qc5 Ka2 12. Qc3 11:09 13/18 Mate17 131916298 1. Nh5+ Kxh7 2. Nf6+ Kg7 3. Nxd5 Kf7 4. f6 Ke6 5. Nf4+ Kf7 6. Kf5 Kg8 7. Ke6 Kh8 8. f7 Kg7 9. Ke7 Kh6 10. f8=Q+ Kg5 11. Ne6+ Kg4 12. Qf4+ Kh3 13. Ng5+ Kg2 14. Ne4 Kh1 15. Qf3+ Kg1 16. Qf2+ 14:30 14/19 Mate14 177995850 1. Nh5+ Kxh7 2. Nf6+ Kg7 3. Nxd5 Kf7 4. f6 Ke6 5. Nf4+ Kf7 6. Kf5 Kg8 7. Ke6 Kh8 8. f7 Kg7 9. Ke7 Kh6 10. Kf6 Kh7 11. Ne6 Kh6 12. f8=Q+ Kh5 13. Qb4 Kh6 14. Qh4# 15:56 15/20 Mate14 206049326 1. Nh5+ Kxh7 2. Nf6+ Kg7 3. Nxd5 Kf7 4. f6 Ke6 5. Nf4+ Kd6 6. f7 Ke7 7. Kg6 Kf8 8. Ne6+ Ke7 9. f8=Q+ Kd7 10. Kf5 Kc6 11. Qb8 Kd7 12. Qc7+ Ke8 13. Qd8+ Kf7 14. Qf8# Steve
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