Author: Enrique Irazoqui
Date: 07:18:42 02/24/01
Go up one level in this thread
On February 24, 2001 at 07:08:47, Howard Exner wrote: >[D]1q1r3k/3P1pp1/ppBR1n1p/2p1Q2P/P4P2/8/5PK1/8 w > >This is the winning sequence. >1. Rxf6 Qxe5 2. fxe5 gxf6 3. exf6 > >Can today's programs on fast hardware find this? On a dual P933 with 512MB hash, Deep Fritz and Deep Shredder beta don't pick Rxf6 in less than 20 minutes. Crafty 18.03 for CB does in 12 minutes. Now I'm trying with Junior 7 beta and if it sees it I will post the analysis. Nice position, Howard. Enrique New position 1q1r3k/3P1pp1/ppBR1n1p/2p1Q2P/P4P2/8/5PK1/8 w - - 0 1 Analysis by Crafty 18.03: 1.Rxf6 Qxe5 2.fxe5 gxf6 3.exf6 µ (-1.23) Depth: 1/2 00:00:03 1.Kg1 µ (-0.83) Depth: 1/2 00:00:03 1.Kg1 ³ (-0.54) Depth: 1/2 00:00:03 1.Kg1 Nxh5 -+ (-1.60) Depth: 2/6 00:00:03 1.Rxf6 Qxe5 2.fxe5 gxf6 3.exf6 µ (-1.23) Depth: 2/6 00:00:03 1.Rd3 Qxe5 2.fxe5 Nxh5 µ (-1.14) Depth: 2/6 00:00:03 1.a5 Ng4 µ (-0.85) Depth: 2/6 00:00:03 1.a5 Ng4 2.Qe8+ Kh7 µ (-0.92) Depth: 3/6 00:00:03 1.a5 bxa5 2.Qxc5 Nxh5 -+ (-1.42) Depth: 4/11 00:00:03 1.Kf1 Qc7 2.Rxf6 Qxe5 3.fxe5 gxf6 4.exf6 µ (-1.34) Depth: 4/11 00:00:03 1.Rd3 Qxe5 2.fxe5 Nxh5 µ (-1.14) Depth: 4/11 00:00:03 1.Rxf6 Qxe5 2.Rxh6+ Kg8 3.fxe5 gxh6 µ (-0.77) Depth: 4/11 00:00:03 1.Rxf6 Qxe5 2.Rxh6+ gxh6 3.fxe5 c4 µ (-0.99) Depth: 5/14 00:00:03 1.Qe7 c4 2.Rd4 Nxh5 3.Qe8+ Kh7 4.Qxf7 µ (-0.75) Depth: 5/14 00:00:03 1.Qe7 Ng8 2.Qe5 f6 3.Qe6 Qc7 µ (-0.90) Depth: 6/14 00:00:03 71kN 1.Rxf6 Qxe5 2.Rxh6+ gxh6 3.fxe5 c4 4.Kf3 µ (-0.82) Depth: 6/14 00:00:03 79kN 1.Rxf6 Qxe5 2.fxe5 gxf6 3.exf6 c4 4.Kf3 µ (-1.36) Depth: 7/14 00:00:03 91kN 1.Qe7 µ (-0.96) Depth: 7/14 00:00:03 107kN 1.Qe7 Ng8 2.Qe5 f6 3.Qe6 Qc7 4.f5 µ (-0.71) Depth: 7/14 00:00:03 154kN 1.Qe7 Ng8 2.Qe5 f6 3.Qe6 Qc7 4.Bd5 a5 µ (-0.98) Depth: 8/14 00:00:03 204kN 1.Kg1 Qc7 2.Re6 Qxe5 3.Rxe5 Kh7 4.Re7 c4 µ (-0.95) Depth: 8/14 00:00:03 429kN 1.Kg1 Qc7 2.Re6 Qxe5 3.Rxe5 Kh7 4.Re7 c4 5.Kg2 Nxh5 6.Rxf7 µ (-0.96) Depth: 9/16 00:00:04 576kN 1.Qe7 Ng8 2.Qe5 f6 3.Qe6 Qc7 4.Bd5 b5 5.Rxa6 bxa4 µ (-0.86) Depth: 9/16 00:00:04 821kN 1.Qe7 Ng8 2.Qe5 f6 3.Qe6 Qc7 4.Bd5 b5 5.Rxa6 bxa4 µ (-0.86) Depth: 10/18 00:00:05 1915kN 1.Rd3 Qa7 2.Rd6 Qc7 3.Re6 Qxe5 4.Rxe5 Kh7 5.Re7 c4 µ (-0.78) Depth: 10/18 00:00:06 3097kN 1.Rd1 Qa7 2.Re1 c4 3.Qd6 Rxd7 4.Bxd7 Qxd7 5.Qf8+ Kh7 6.Re7 ³ (-0.66) Depth: 10/18 00:00:07 3941kN 1.Rd1 Qa7 2.Re1 Rxd7 3.Bxd7 Qxd7 4.Qb8+ Kh7 5.Qxb6 Nxh5 6.Qb1+ f5 7.Kf3 ³ (-0.62) Depth: 11/20 00:00:09 5853kN 1.Rd1 Qa7 2.Re1 Rxd7 3.Bxd7 Qxd7 4.Qb8+ Kh7 5.Qxb6 Nxh5 6.Qxa6 Qg4+ 7.Kf1 Nxf4 µ (-0.73) Depth: 12/20 00:00:13 10365kN 1.Qe7 Ng8 2.Qe5 a5 3.Rd3 Qa7 4.Re3 Nf6 5.Qe7 Rxd7 6.Bxd7 Qxd7 ³ (-0.59) Depth: 12/20 00:00:20 17432kN 1.Qe7 Ng8 2.Qe5 a5 3.Rd3 Qa7 4.Re3 Rxd7 5.Bxd7 Qxd7 6.Qb8 Qg4+ 7.Kf1 c4 8.Qxb6 Qxh5 ³ (-0.58) Depth: 13/20 00:00:23 20655kN 1.Rd1 Qa7 2.Re1 Rxd7 3.Bxd7 Qxd7 4.Qb8+ Kh7 5.Qxb6 Qg4+ 6.Kf1 Qh3+ 7.Kg1 Nxh5 8.Re7 Qf5 9.Qxa6 Nxf4 ³ (-0.56) Depth: 13/20 00:00:30 29016kN 1.Rd1 Qa7 2.Re1 Rxd7 3.Bxd7 Qxd7 4.Qb8+ Kh7 5.Qxb6 Qg4+ 6.Kf1 Qh3+ 7.Kg1 Qxh5 ³ (-0.54) Depth: 14/22 00:00:52 52866kN 1.Qe7 Ng8 2.Qe5 f6 3.Qe6 Qc7 4.Be4 c4 5.Bf5 b5 6.Rxa6 bxa4 7.Rxa4 c3 ³ (-0.28) Depth: 14/22 00:01:28 91979kN 1.Qe7 Ng8 2.Qe5 c4 3.Rd4 c3 4.Rd3 c2 5.Qxb8 Rxb8 6.Rc3 Nf6 7.Rxc2 Rd8 8.a5 bxa5 = (-0.08) Depth: 15/24 00:02:05 131403kN 1.Qe7 Ng8 2.Qe5 Nf6 = (0.00) Depth: 16/24 00:03:11 203085kN 1.Qe7 Ng8 2.Qe5 Nf6 = (0.00) Depth: 17/24 00:04:18 277777kN 1.Qe7 Ng8 2.Qe5 Nf6 = (0.00) Depth: 18/24 00:08:06 529114kN 1.Rxf6 Qxe5 2.fxe5 gxf6 3.exf6 c4 4.Kf3 Kh7 5.Ke4 Kg8 6.Kd4 c3 7.Kxc3 Kh8 8.Kd4 Kh7 9.Be4+ Kg8 10.Bf5 ² (0.31) Depth: 18/24 00:12:31 827881kN 1.Rxf6 Qxe5 2.fxe5 gxf6 3.exf6 c4 4.Kf3 Kh7 5.Ke4 Kg8 6.Kd4 c3 7.Kxc3 Kh8 8.Kd4 Kg8 9.Kd5 ² (0.38) Depth: 19/24 00:13:20 884211kN (Irazoqui, Cadaqués 24.02.2001)
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