Author: enrico carrisco
Date: 21:01:22 11/16/03
Go up one level in this thread
On November 16, 2003 at 21:29:52, Christopher A. Morgan wrote: >Bob, > >As you posted in one of the replies below, Crafty analyzed the ending position >in game three of the X3D match, after white’s Rb3, about +2.6, and even before >the end that white had a far superior position. Uri, I think it was, posted >analysis of other engines and most were +1 or less. Results I got for depth of >12 ply were as follows: Crafty 19.03 - +2.68, Shredder 7.04 - +0.95, Fritz 8 - >+0.44, CT14 - +1.24, and for depth of 15 for Junior 7 - +1.05. I think we have >to assume that the new deep Fritz running in a 4X2.8 configuration also came up >with a similar analyses that it was lost, probably +2.5 or worse. Tony Rook on >Chess FM radio said 4-5 moves before the end that Mathias had said Fritz would >not resign unless the analysis was that much in favor of GK (white). > >There was no doubt among the grandmasters that Fritz (black) was toast, with GM >John Fedorowicz on Chess FM radio even going so far to wonder whether GK would >be getting upset that Fritz was playing on in a completely lost position. >Obviously your Crafty was one of the few engines to analyze the position >properly. I congratulate you on Crafty’s fine analysis. What do you attribute >Crafty’s analysis superiority in this position to compared to the top commercial >programs? Thanks. > >Chris I noticed you didn't include Hiarcs in your mention above. Its analysis shows roughly the same score as what Bob posted earlier... I have doubts that X3D Fritz's eval was much above +2.00 for white. Even with its strong hardware, it simply didn't sit and analyze the position for an hour. I am fairly sure that the resignation came from human's behind the computer. -elc. (P.S. -- Ignore the odd Hiarcs revision.. It's an internal version, but identical to Hiarcs 9.) r6k/1r1qnppp/NPp2n1b/2Pp4/3Pp3/1RB1P1PP/R1Q2P2/K4B2 b - - 0 1 Analysis by Hiarcs 8.393a on an AMD Athlon XP at 2.5GHz with 512MB Hashtable: 45...Ne7-f5 = (0.00) Depth: 1/2 00:00:00 45...Ne7-f5 46.g3-g4 = (0.11) Depth: 2/4 00:00:00 45...Kh8-g8 = (0.10) Depth: 2/5 00:00:00 45...Kh8-g8 46.Rb3-a3 = (0.10) Depth: 2/5 00:00:00 45...Kh8-g8 46.Na6-c7 Ra8-b8 = (0.08) Depth: 3/5 00:00:00 45...Kh8-g8 46.Na6-c7 Ra8-b8 ² (0.34) Depth: 4/9 00:00:00 45...Kh8-g8 46.Na6-c7 Ra8-d8 47.Ra2-a8 Rd8xa8+ ² (0.44) Depth: 4/9 00:00:00 45...Ne7-f5 46.g3-g4 ² (0.42) Depth: 4/9 00:00:00 45...Ne7-f5 46.Na6-c7 Ra8-d8 47.Ra2-a8 ² (0.42) Depth: 4/9 00:00:00 45...Ra8-f8 ² (0.38) Depth: 4/11 00:00:00 45...Ra8-f8 46.Rb3-a3 ² (0.38) Depth: 4/11 00:00:00 45...Ra8-f8 46.Rb3-a3 Kh8-g8 47.g3-g4 Rf8-a8 ² (0.42) Depth: 5/11 00:00:00 4kN 45...Ra8-d8 46.Rb3-a3 ² (0.41) Depth: 5/12 00:00:00 13kN 45...Ra8-d8 46.Rb3-a3 Kh8-g8 47.g3-g4 Bh6-g5 ² (0.39) Depth: 5/12 00:00:00 14kN 45...Ra8-d8 46.Rb3-a3 Kh8-g8 47.g3-g4 Bh6-g5 48.Na6-c7 ² (0.42) Depth: 6/12 00:00:00 20kN 45...Ra8-d8 46.Rb3-a3 Kh8-g8 47.h3-h4 Rd8-a8 48.Na6-c7 Ra8-b8 ² (0.52) Depth: 7/14 00:00:00 45kN 45...Ra8-d8 46.Rb3-a3 Ne7-f5 47.Bf1-e2 ² (0.64) Depth: 8/23 00:00:00 166kN 45...Ra8-f8 46.Rb3-a3 ² (0.63) Depth: 8/23 00:00:00 181kN 45...Ra8-f8 46.Rb3-a3 Kh8-g8 47.Na6-b4 Rf8-d8 48.Ra3-a7 ² (0.63) Depth: 8/23 00:00:00 211kN 45...Ra8-f8 46.Rb3-a3 Bh6-g5 47.Na6-b4 ± (0.80) Depth: 9/26 00:00:01 523kN 45...Ra8-d8 46.Rb3-a3 Ne7-f5 47.Bf1-e2 ± (0.80) Depth: 9/26 00:00:01 544kN 45...Ra8-d8 46.Rb3-a3 Bh6-g5 47.Na6-b4 Kh8-g8 48.Ra3-a8 Rb7-b8 49.Ra8xb8 Rd8xb8 ± (0.77) Depth: 9/26 00:00:01 630kN 45...Ra8-d8 46.Rb3-a3 Ne7-g6 47.Na6-c7 ± (0.90) Depth: 10/26 00:00:04 1512kN 45...Ra8-d8 46.Rb3-a3 Ne7-f5 47.Na6-c7 Rb7-b8 48.Ra3-a8 ± (1.09) Depth: 11/26 00:00:10 4019kN 45...Kh8-g8 46.Na6-c7 ± (1.09) Depth: 11/26 00:00:13 5056kN 45...Kh8-g8 46.Na6-b4 Ra8-e8 47.Rb3-a3 Rb7-b8 48.Ra3-a7 Qd7-c8 49.Nb4-a6 Rb8-b7 50.Ra7xb7 Qc8xb7 ± (1.01) Depth: 11/27 00:00:14 5353kN 45...Kh8-g8 46.Na6-b4 Rb7-b8 47.Rb3-a3 Ra8xa3 48.Ra2xa3 Ne7-c8 49.Bf1-e2 Qd7-e6 50.Qc2-a4 Nc8-e7 51.Qa4-a7 ± (1.23) Depth: 12/31 00:00:31 10360kN 45...Ra8-d8 46.Rb3-a3 Ne7-f5 47.Na6-c7 Rb7-b8 48.Ra3-a8 ± (1.23) Depth: 12/31 00:00:32 10531kN 45...Ra8-d8 46.Rb3-a3 Bh6-g5 47.Na6-b4 ± (1.22) Depth: 12/31 00:00:41 13028kN 45...Ra8-d8 46.Rb3-a3 Kh8-g8 47.Na6-b4 Qd7-e8 48.Ra3-a7 Rb7-d7 49.Ra7xd7 Rd8xd7 50.Bf1-e2 Rd7-b7 51.Ra2-a7 Rb7xa7+ 52.b6xa7 Qe8-a8 53.Qc2-a4 +- (1.44) Depth: 13/31 00:01:52 33439kN 45...Kh8-g8 46.Na6-b4 Rb7-b8 47.Rb3-a3 Ra8xa3 48.Ra2xa3 Ne7-c8 49.Bf1-e2 Qd7-e6 50.Qc2-a4 Nc8-e7 51.Qa4-a7 +- (1.43) Depth: 13/33 00:01:56 34462kN 45...Kh8-g8 46.Na6-b4 Rb7-b8 47.Rb3-a3 Ra8xa3 48.Ra2xa3 Ne7-c8 49.Bf1-e2 Qd7-b7 50.h3-h4 ± (1.38) Depth: 13/33 00:02:02 36299kN 45...Qd7-d8 46.Rb3-a3 ± (1.37) Depth: 13/35 00:03:30 62145kN 45...Qd7-d8 46.Rb3-a3 ± (1.37) Depth: 13/35 00:03:38 64142kN 45...Qd7-d8 46.Rb3-a3 Kh8-g8 47.Na6-b4 Ra8xa3 48.Ra2xa3 +- (1.47) Depth: 14/35 00:04:42 83131kN 45...Kh8-g8 46.Na6-b4 Rb7-b8 47.Rb3-a3 Ra8xa3 48.Ra2xa3 Ne7-c8 49.Bf1-e2 Qd7-b7 50.h3-h4 +- (1.46) Depth: 14/35 00:04:50 85322kN 45...Kh8-g8 46.Na6-b4 Rb7-b8 47.Rb3-a3 Ra8xa3 48.Ra2xa3 Ne7-c8 49.Bf1-e2 g7-g6 50.h3-h4 Qd7-b7 51.Bc3-b2 ± (1.38) Depth: 14/35 00:05:10 90978kN 45...Kh8-g8 46.Na6-b4 Ra8-d8 47.Rb3-a3 Qd7-e8 48.Ra3-a7 Rb7-d7 49.h3-h4 Nf6-g4 50.Bf1-h3 f7-f5 51.Bh3xg4 f5xg4 52.Qc2-d1 Qe8-g6 53.Ra7xd7 +- (1.54) Depth: 15/39 00:10:24 180749kN 45...Ra8-d8 46.Rb3-a3 +- (1.53) Depth: 15/39 00:11:28 198529kN 45...Ra8-d8 46.Rb3-a3 +- (1.53) Depth: 15/39 00:12:54 222563kN 45...Ra8-d8 46.Rb3-a3 Kh8-g8 47.Na6-b4 Qd7-e8 48.Ra3-a7 Rb7-d7 49.h3-h4 Rd7xa7 50.Ra2xa7 +- (1.63) Depth: 16/43 00:29:32 503948kN 45...Ra8-d8 46.Rb3-a3 Kh8-g8 47.Na6-b4 Qd7-e8 48.Ra3-a7 Rb7-d7 49.Nb4-a6 Ne7-c8 50.Ra7xd7 Qe8xd7 51.Qc2-b3 Qd7-b7 52.Na6-b4 Nc8-e7 53.Ra2-a7 Rd8-a8 +- (1.78) Depth: 17/43 01:11:22 1206727kN 45...Ra8-d8 46.Rb3-a3 g7-g6 47.Na6-b4 Qd7-e8 48.Ra3-a7 Rb7xa7 49.Ra2xa7 Nf6-d7 50.Nb4-a6 Ne7-c8 51.Ra7-a8 Nc8-e7 52.Ra8xd8 Qe8xd8 53.Qc2-b2 Kh8-g8 54.Bf1-e2 +- (1.90) Depth: 18/49 03:35:07 3568804kN
This page took 0 seconds to execute
Last modified: Thu, 15 Apr 21 08:11:13 -0700
Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.