Author: John Merlino
Date: 23:07:10 05/28/05
Go up one level in this thread
On May 29, 2005 at 01:37:40, Steven Edwards wrote: >On May 28, 2005 at 22:14:54, Mark Ryan wrote: > >>1963: Bronstein versus M20: >>http://www.chessgames.com/perl/chessgame?gid=1238081 > >The position of interest: > >[D] rnbq1b1r/p1pp1p1p/4k3/1p1NP1p1/2QP1p2/5N2/PP1B1KPP/n6R w - - 0 14 > >It's mate in ten: > >[SI] [01] (14. Nxc7+) S: -8.797 >[SI] [01] (14. Nxc7+ Ke7 15. Qb4+ d6 16. Nxa8) S: -3.377 >[SI] [02] (14. Nxc7+) S: -2.627 >[SI] [02] (14. Nxc7+ Ke7 15. Nd5+ Ke8 16. Nc7+ Qxc7 17. Qxc7) S: -2.254 >[SI] [03] (14. Nxc7+) S: -1.504 >[SI] [03] (14. Nxc7+ Ke7 15. Bb4+ d6 16. Bxd6+ Kd7 17. Qxf7+ Kc6 18. Nxa8 Bxd6 >19. Rxa1) S: -1.464 >[SI] [04] (14. Nxc7+) S: -0.714 >[SI] [04] (14. Nxc7+ Ke7 15. Bb4+ d6 16. Bxd6+ Qxd6 17. exd6+ Kf6 18. Ne8+ Kg6 >19. Ne5+ Kh6 20. Qxc8) S: +2.215 >[SI] [05] (14. Nxc7+) S: +2.965 >[SI] [05] (14. Nxc7+ Ke7 15. Bb4+ d6 16. Bxd6+ Qxd6 17. exd6+ Kd8 18. Qxf7 Bxd6 >19. Nxa8 g4 20. Rxa1 gxf3) S: +3.941 >[SI] [06] (14. Nxc7+ Ke7 15. Bb4+ d6 16. Bxd6+ Qxd6 17. exd6+ Kd8 18. Qxf7 Bxd6 >19. Nxa8 Rf8 20. Qxa7) S: +4.550 >[SI] [06] (14. Nxg5+) S: +4.691 >[SI] [06] (14. Nxg5+ Qxg5 15. Nxf4+ Ke7 16. Nd5+ Ke8 17. Nxc7+ Kd8 18. Bxg5+ Be7 >19. Bxe7+ Kxe7 20. Qc5+ Kd8 21. Nxa8 d6) S: +5.215 >[SI] [07] (14. Nxg5+) S: +5.965 >[SI] [07] (14. Nxg5+ Qxg5 15. Nxc7+ Ke7 16. Nd5+ Ke6 17. Nxf4+ Ke7 18. Nd5+ Ke8 >19. Qxc8+ Qd8 20. Nc7+ Ke7 21. Bb4+ d6 22. Bxd6+ Qxd6 23. Qe8#) S: MateIn10 I'm not quite so sure that's the most interesting position. The King finds Mate in 10 in less than one second. I guess the most interesting aspect of this position is that Bronstein played the mate perfectly. However, I think the more interesting position is this: [D]rnbq1b1r/ppppkp1p/5N2/4P1p1/3P1p2/5N2/PP1BQKPP/n6R w - - 0 12 How soon does your engine find Nd5+? CM9_R1 on a P4-2.4 needs 1:28 to settle on the move: Time Depth Score Positions Moves 0:00 1/5 -3.73 25888 12.Bb4+ d6 13.Nd5+ Kd7 14.Nf6+ Ke6 15.Nxg5+ Kf5 16.Rxa1 dxe5 0:00 1/5 -1.70 38746 12.Nd5+ Ke6 13.Nxg5+ Qxg5 14.Nxf4+ Qxf4+ 15.Bxf4 Kf5 16.e6 0:00 1/6 -0.68 63528 12.Nd5+ Ke6 13.Nxg5+ Qxg5 14.Nxf4+ Qxf4+ 15.Bxf4 Rg8 16.Rxa1 Ke7 0:00 1/7 -0.62 196883 12.Nd5+ Ke6 13.Nxg5+ Qxg5 14.Nxf4+ Qxf4+ 15.Bxf4 Nb3 16.Qc4+ Ke7 17.axb3 Nc6 0:01 1/7 -0.44 375346 12.Bb4+ d6 13.Nd5+ Kd7 14.Nf6+ Qxf6 15.exf6 a5 16.Re1 c5 17.Bc3 g4 0:04 1/8 -0.62 1008562 12.Bb4+ d6 13.Nd5+ Kd7 14.Nf6+ Qxf6 15.exf6 a5 16.Re1 c5 17.Bc3 g4 18.Ng5 0:17 1/9 0.00 3705697 12.Bb4+ d6 13.Nd5+ Kd7 14.Nf6+ Ke7 1:00 2/10 -0.39 14272098 12.Bb4+ d6 13.Nd5+ Kd7 14.Nf6+ Qxf6 15.exf6 c5 16.dxc5 Nc6 17.Bc3 g4 18.Ng5 f3 19.gxf3 1:28 2/10 0.00 20795168 12.Nd5+ Ke6 13.Qc4 d6 14.Re1 Kd7 15.Nf6+ Ke7 16.Nd5+ Kd7 4:03 2/11 0.00 58090260 12.Nd5+ Ke6 13.Qc4 d6 14.Re1 Kd7 15.Nf6+ Ke7 16.Nd5+ Kd7 jm
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