Author: Geo Disher
Date: 14:51:12 03/08/06
Go up one level in this thread
On March 08, 2006 at 17:23:43, Uri Blass wrote: My machine is much faster though. I am running on a 3400+ vs his 2200 AMD. I think if he let his run long enouph it would change. The eval diffrence is small but it is the fist time I have seen an engine show it as the best move after a long ponder. I will let it continue to run and see if it remains the best move. Even the old Rybka seems to understand these type of possitions better than most other programs. I may purchase the new version of Rybka after the next version and do the same test. Deep Blue may have been correct;) >On March 08, 2006 at 16:55:48, Geo Disher wrote: > >>You may be wrong about Qb6 being the best move. Rybka finds axb5 as best also >>after 17 hours of eval. >> >>New game >>r1r1q1k1/6p1/p2b1p1p/1p1PpP2/PPp5/2P4P/R1B2QP1/R5K1 w - - 0 1 >> >>Analysis by Rybka 1.0 Beta 32-bit: >> >>1.Qb6 Rd8 2.Be4 Be7 3.axb5 Rd6 4.Qa5 Bd8 5.Qa4 a5 >> +- (1.57) Depth: 4 00:00:00 >>1.Qb6 Rd8 2.Be4 Be7 3.axb5 Rd6 4.Qa5 Bd8 5.Qa4 a5 >> +- (1.57) Depth: 4 00:00:00 >>1.Qb6 Rd8 2.Be4 Be7 3.axb5 Rd6 4.Qa5 Bd8 5.Qa4 a5 >> +- (1.82) Depth: 5 00:00:00 >>1.Qb6 Rd8 2.Be4 Be7 3.axb5 Rd6 4.Qa5 Bd8 5.Qa4 a5 >> +- (2.06) Depth: 6 00:00:00 5kN >>1.Qb6 Rd8 2.Be4 Be7 3.axb5 Rd6 4.Qa5 Bd8 5.Qa4 a5 >> +- (1.73) Depth: 7 00:00:00 10kN >>1.Qb6 Rd8 2.Be4 Be7 3.axb5 Rd6 4.Qa5 Bd8 5.Qa4 a5 >> +- (1.83) Depth: 8 00:00:00 13kN >>1.Qb6 Rd8 2.Be4 Be7 3.axb5 Rd6 4.Qa5 Bd8 5.Qa4 a5 >> +- (1.73) Depth: 9 00:00:00 17kN >>1.Qb6 Rd8 2.Be4 Be7 3.axb5 Rd6 4.Qa5 Bd8 5.Qa4 a5 >> +- (1.95) Depth: 10 00:00:00 37kN >>1.Qb6 Rd8 2.Be4 Be7 3.axb5 Rd6 4.Qa5 Bd8 5.Qa4 a5 >> +- (1.86) Depth: 11 00:00:01 44kN >>1.Qb6 Rd8 2.Be4 Be7 3.axb5 Rd6 4.Qa5 Bd8 5.Qa4 a5 >> +- (1.77) Depth: 12 00:00:02 116kN >>1.Qb6 Rd8 2.Be4 Be7 3.axb5 Rd6 4.Qa5 Bd8 5.Qa4 a5 >> +- (1.68) Depth: 13 00:00:03 199kN >>1.Qb6 Rd8 2.Be4 Be7 3.axb5 Rd6 4.Qa5 Bd8 5.Qa4 a5 >> +- (1.65) Depth: 14 00:00:04 298kN >>1.Qb6 Rd8 2.Be4 Be7 3.axb5 Rd6 4.Qa5 Bd8 5.Qa4 a5 >> +- (1.63) Depth: 15 00:00:05 450kN >>1.Qb6 Qe7 2.axb5 Rab8 3.Qxa6 e4 4.Qa7 Qe5 5.Qe3 Re8 >> +- (1.65) Depth: 16 00:00:10 1369kN >>1.Qb6 Qe7 2.axb5 Rab8 3.Qxa6 e4 4.Qa7 Qe5 5.Qe3 Re8 >> +- (1.65) Depth: 17 00:00:46 5181kN >>1.Qb6 Qe7 2.axb5 Rab8 3.Qxa6 e4 4.Qa7 Qe5 5.Qe3 Re8 >> +- (1.55) Depth: 18 00:01:54 12780kN >>1.Qb6 Qe7 2.axb5 Rab8 3.Qxa6 e4 4.Qa7 Qe5 5.Qe3 Re8 >> +- (1.75) Depth: 19 00:03:47 26970kN >>1.Qb6 Qe7 2.axb5 Rab8 3.Qxa6 e4 4.Qa7 Qe5 5.Qe3 Re8 >> +- (1.70) Depth: 20 00:06:27 46469kN >>1.Qb6 Qe7 2.axb5 Rab8 3.Qxa6 e4 4.Qa7 Qe5 5.Qe3 Re8 >> +- (1.59) Depth: 21 00:12:58 89868kN >>1.Qb6 Qe7 2.axb5 Rab8 3.Qxa6 e4 4.Qa7 Qe5 5.Qe3 Re8 >> +- (1.53) Depth: 22 00:32:35 215285kN >>1.Qb6 Qe7 2.axb5 Rab8 3.Qxa6 >> ± (1.39) Depth: 23 01:11:34 454452kN >>1.Qb6 Qe7 2.axb5 >> +- (1.52) Depth: 24 02:27:32 937211kN >>1.Qb6 Qe7 >> ± (1.26) Depth: 25 07:55:22 2876850kN >>1.axb5 axb5 >> ± (1.28) Depth: 25 17:10:17 2876850kN >> >>(, 08.03.2006) > >This version is an old rybka version and the difference is only 0.02 pawns so it >may change it's mind later. > >I read in the following post that Rybka does not choose axb5 after 24 hours so I >guess that better rybka was used > >http://www.talkchess.com/forums/1/message.html?491170 > >Uri
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