Author: Uri Blass
Date: 02:17:41 07/12/01
Go up one level in this thread
On July 12, 2001 at 05:04:20, Harald Faber wrote: >On July 12, 2001 at 03:14:00, Fabio Barrettone wrote: > >>>Might have been a good question for sunday, if I wouldn't have found the >>>booklet. But feel free to repeat it there if you like... maybe we get additional >>>comments (i.e. what the use of this option is anyway :o). >>> >> >>Could be as you say, and I certainly don't suggest that the booklet of Junior is >>wrong, but... If you let play J7 vs any other engine in a Nunn match with >>Threshold "8000" it wins more games. A coincidence? I don't think since if you >>switch again the threshold to the normal value the vice-versa happens. Junior >>plays always the same move with Permanet Brain OFF and no book, so the games are >>all the same with the same threshold, but different with different ones. I could >>give you the pgn for the games if you don't believe me, no problem. >> >>Sincerely, >>Fabio. > >Could you please send the games to me? The ones with -9999 and the ones with >+8000? Thanks a lot! I can add that it seems strange to me because I could reproduce the Nc3 mistake of Junior with +8000. I am interested to see one position when threshold=8000 produce different move or different time because it seems to me that Junior ignores the threshold parameter under game conditions. I believe that contempt=0 is better than contempt=15 and I could not reproduce the Nc3 mistake under the same conditions with contempt=0 Here is the analysis with contempt=0 under the exact conditions that Junior played Nc3 on my p800. Junior 7 - Blass,U r1r5/pb2kpp1/4p2p/3nP3/Nq6/3Q1N2/1P3PPP/R2R2K1 b - - 0 1 Analysis by Junior 7: 22.b3 Rd8 = (0.07) Depth: 3 00:00:00 22.h3 Rd8 = (0.10) Depth: 3 00:00:00 22.Nd4 Rd8 = (0.13) Depth: 3 00:00:00 22.Qh7 Rd8 ² (0.27) Depth: 3 00:00:00 22.Qh7 Nf4 = (-0.17) Depth: 6 00:00:00 1kN 22.Nc3 Nxc3 = (-0.15) Depth: 6 00:00:00 1kN 22.Qa3 Qxa3 = (-0.12) Depth: 6 00:00:00 1kN 22.Qa3 Qxa3 = (-0.12) Depth: 9 00:00:00 3kN 22.Qa3 Qxa3 = (-0.12) Depth: 12 00:00:00 28kN 22.Qa3 Qxa3 23.Rxa3 Ne7 24.Nd4 Ng6 25.Re3 Rab8 26.Nc3 = (-0.14) Depth: 14 00:00:01 751kN 22.Nc3 Nxc3 23.bxc3 Qxc3 24.Qd6+ Kg8 25.Nd4 a5 26.Rab1 Rab8 27.Qe7 = (-0.06) Depth: 14 00:00:07 5031kN 22.Nc3 Nxc3 ³ (-0.36) Depth: 16 00:01:12 47752kN 22.Qa3 Qxa3 23.Rxa3 Nf4 24.Ne1 Ne2+ 25.Kh1 Rab8 26.Nc3 Nxc3 27.bxc3 a5 = (-0.17) Depth: 16 00:03:31 141578kN 22.b3 Kg8 23.Qd2 a5 24.Qxb4 axb4 25.Rdc1 Nc3 26.Nd4 = (-0.16) Depth: 16 00:03:42 149057kN 22.b3 Kg8 23.Qd2 Qxd2 24.Rxd2 Nf4 25.Rd7 Bc6 26.Rdd1 Bxf3 27.gxf3 = (-0.17) Depth: 17 00:04:54 195656kN (Blass, Tel-aviv 12.07.2001) Uri
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.