Author: Robert Hyatt
Date: 11:04:51 08/27/01
Go up one level in this thread
On August 26, 2001 at 04:29:51, Uri Blass wrote: >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 On my quad, it finds Ne5 after 8 seconds. Score = +1.20 at depth=9. By depth=11, the score is near to zero. Diep might have said +2, but it was well on the way to losing this game and didn't have a clue. Diep is not the tactical monster Vincent thinks, in every case. Here it seems to simply misunderstand the position. At depth=12, Crafty thinks black is better after Ne5. And the score gets better and better each iteration. I have no idea what happened in the game, as if Michel used winboard then blitz is a real problem since it is not easy to take back erroneous moves. I _always_ operate in text mode and have no such problems. But you do have to be a good typer and understand the game well enough to read/make and see/type moves very quickly to avoid getting killed on time.
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