Author: Uri Blass
Date: 01:29:51 08/26/01
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On August 25, 2001 at 18:08:39, Vincent Diepeveen wrote: >On August 25, 2001 at 16:57:34, K. Burcham wrote: > >>1. does anyone know what the operator error was in the diep vs crafty game? > >He used winboard and crafty can't take back a move in winboard. >Idem for Zchess. > >Note i was at +2.0 against crafty already. I was busy mating it, >in fact. I cannot see that you were +2 against Crafty. Here is some analysis by Junior7 on pIII800(Junior used only 10 Mbytes hash but I know that it is not sensitive to hash tables) Diep - Crafty [D]3r2k1/3nqpp1/3r1n2/P1p3B1/2Q1B3/P3P3/5P1P/2R1K1R1 b - - 0 1 Analysis by Junior 7: 26...Nxe4 27.Bxe7 Ndf6 28.Bxd8 Rxd8 +- (5.99) Depth: 3 00:00:00 1kN 26...g6 27.Bxg6 +- (2.24) Depth: 3 00:00:00 1kN 26...Ne5 27.Qxc5 Nxe4 28.Bxe7 ± (1.20) Depth: 3 00:00:00 1kN 26...Qe5 27.Bg6 ± (1.19) Depth: 3 00:00:00 2kN 26...Qe5 27.Bf4 Qb2 28.Bxd6 Nxe4 +- (1.72) Depth: 6 00:00:00 10kN 26...Ne5! ± (0.89) Depth: 6 00:00:00 12kN 26...Ne5! 27.Qc2 Qa7 28.Bxf6 Qxa5+ 29.Kf1 Rxf6 30.Qxc5 ² (0.54) Depth: 6 00:00:00 28kN 26...Ne5! = (0.24) Depth: 9 00:00:00 193kN 26...Ne5 27.Qa4 Rd2 28.Kf1 Qe6 29.Rg2 Nxe4 30.Qxe4 Qa6+ 31.Kg1 = (0.12) Depth: 12 00:00:03 2481kN 26...Ne5! = (-0.18) Depth: 15 00:00:37 25091kN 26...Ne5! ³ (-0.48) Depth: 17 00:08:14 338102kN 26...Ne5 27.Qa4 Qe6 28.Bxf6 Qxf6 29.Kf1 Rd2 30.Rg2 Nf3 31.Bxf3 Qxf3 32.Re1 Qh3 33.Qe4 ³ (-0.28) Depth: 18 00:15:43 602020kN (Blass, Tel-aviv 26.08.2001) Here is some analysis by Crafty(64 mbytes hash tables) Diep - Crafty 3r2k1/3nqpp1/3r1n2/P1p3B1/2Q1B3/P3P3/5P1P/2R1K1R1 b - - 0 1 Analysis by Crafty 18.10: 26...Qe5 ± (1.23) Depth: 1/11 00:00:05 26...Nb8 27.Bf5 +- (1.41) Depth: 2/11 00:00:05 26...Nb8 27.Bf5 +- (1.41) Depth: 2/11 00:00:05 26...Nb8 27.Bf5 +- (1.41) Depth: 2/11 00:00:05 26...Re6 27.Bf5 ± (1.35) Depth: 2/11 00:00:05 26...Re6 27.Bf5 Re5 ± (1.38) Depth: 3/11 00:00:05 26...Re6 27.Bd5 Rd6 28.Rd1 +- (1.51) Depth: 4/12 00:00:05 26...Rb8 27.Bf5 Rd4 28.Qc2 +- (1.41) Depth: 4/12 00:00:05 26...Re8 27.f3 Qe5 28.Bg6 ± (1.30) Depth: 4/12 00:00:05 26...Re8 27.Bf5 Ne5 28.Qxc5 Nf3+ 29.Kf1 Nxg1 30.Kxg1 +- (1.77) Depth: 5/16 00:00:06 26...Rb8 27.Bf5 Ne5 28.Qxc5 Nf3+ 29.Kf1 Nxg1 30.Kxg1 +- (1.67) Depth: 5/16 00:00:06 26...Re6 27.Bf5 Re5 28.Qf4 Nb8 +- (1.53) Depth: 5/16 00:00:06 26...Re6 27.f3 Rc8 28.a6 Ne5 29.Bxf6 Qxf6 +- (1.63) Depth: 6/16 00:00:06 170kN 26...Re8 27.Bf5 Ne5 28.Qf4 c4 29.Kf1 +- (1.59) Depth: 6/16 00:00:06 241kN 26...Re8 27.Bf5 Ne5 28.Qf4 c4 29.Bxf6 Qxf6 30.Kf1 ± (1.20) Depth: 7/18 00:00:07 469kN 26...Re8 27.Bf5 Ne5 28.Qe2 c4 29.Kf1 Ra6 30.Bh6 ± (1.34) Depth: 8/20 00:00:08 943kN 26...Re8 27.Bc2 Rd4 28.Qe2 c4 29.Bh6 g6 30.Bf5 Kh7 +- (1.42) Depth: 9/22 00:00:16 4792kN 26...Ne5 27.Qc3 Rd2 28.Bxf6 Qxf6 29.Rg2 Qd6 30.Kf1 Rc8 31.Kg1 ± (1.20) Depth: 9/22 00:00:26 9389kN 26...Ne5 27.Qc2 Rd2 28.Bh7+ Kh8 29.Qf5 Qd7 30.Qxd7 R8xd7 31.Bf5 Nf3+ 32.Kf1 Rd1+ 33.Rxd1 Rxd1+ 34.Ke2 Rxg1 35.Bxf6 Nxh2 ± (0.89) Depth: 10/26 00:00:50 20084kN 26...Ne5 27.Qc2 Rd2 28.Bh7+ Kh8 29.Qf5 Qd7 30.Qxd7 R8xd7 31.Bf5 Nf3+ 32.Kf1 Rd1+ 33.Rxd1 Rxd1+ 34.Ke2 Rxg1 35.Bxf6 Nxh2 ² (0.49) Depth: 11/30 00:01:22 33682kN 26...Ne5 27.Qb3 Rd2 28.Rg2 Qd6 29.Bxf6 Qxf6 30.Kf1 Qa6+ 31.Kg1 Qxa5 32.Ra1 c4 ² (0.38) Depth: 11/30 00:02:29 64074kN 26...Ne5 27.Qb3 c4 28.Qb1 Qe6 29.Bxf6 Qxf6 30.Rg3 Nd3+ 31.Bxd3 cxd3 32.Rc7 Re6 33.Qd1 Rd4 = (-0.01) Depth: 12/31 00:04:19 112622kN (Blass, Tel-aviv 26.08.2001) >I'm sure game would have been ended soon anyway as >crafty always has problems with its king and tactical it's just >not at the same level. I am sure of nothing. crafty needs 9389 Knodes to find Ne5 and I suspect that it has chances to find it in blitz. Uri
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