Author: Enrique Irazoqui
Date: 11:14:38 10/18/00
Go up one level in this thread
On October 18, 2000 at 13:41:05, Chessfun wrote: >On October 18, 2000 at 13:35:25, Enrique Irazoqui wrote: > >>On October 18, 2000 at 13:28:29, Chessfun wrote: >> >>>On October 18, 2000 at 09:31:37, Enrique Irazoqui wrote: >>> >>>> >>>>>Christophe explained that he did not finish to tune gambit's evaluation and I >>>>>believe that he is going to have better evaluation in the future. >>>>>I guess that in this case slower time control can also help tiger to avoid >>>>>49.Rb7 because the score dropped one move after it. >>>> >>>>I left Gambit computing this move for almost an hour, and Rb7 was still the >>>>choice. >>> >>>Without wishing to drag out the issue as even without Rb7 the games >>>is likely drawn with best play by both sides. I let gambit run for >>>2 hours and it chooses RB7 on my machine only upto 45 seconds. >> >>I guess Gambit was analyzing the game before this move and had all sort of stuff >>stored in hashtables. If you load Gambit and start computing the 49th move it >>will play Rb7. At least it does in the 3 machines I tried. >> >>Enrique > > > >I'll try that as all I did was load the position after 42....g5 >without the Qh5+ and back to d1 which was when I posted the first >on 42....g5. That's what I got on the P600E, 192MB hash: 00:00:03.2 4,20 10 694872 Ra7 Nxe3 Qf8+ Kh5 fxe3 00:00:07.4 4,20 11 1510172 Ra7 Nxe3 Qf8+ Kh5 fxe3 g4 Qg8 Kh6 Qg7+ Kh5 Qh8 Kh4 Rxh7+ Kg3 00:00:14.4 3,96 12 3006828 Ra7 Nxe3 Qf8+ Kh5 fxe3 Re5 Qh8 h6 b4 Rd5 Rxa6 Rd1+ Kh2 Qe5+ g3 00:01:36.4 3,66 13 20209285 Ra7 Nxe3 Qf8+ Kh5 fxe3 Qg6 Qc8 f5 Ra8 Rc6 Qf8 f4 exf4 gxf4 b4 00:03:24.3 4,12 13 42707721 Qf8+ Kh5 Rb7 Qg6 Qb8 Kg4 Qh2 Kf5 Rxh7 Nxe3 fxe3 Rc6 b4 Ke6 Rh6 00:04:21.8 4,28 13 54727862 Rb7 Nxe3 Qf8+ Kh5 fxe3 00:05:12.2 4,28 14 65516840 Rb7 Nxe3 Qf8+ Kh5 fxe3 00:07:57.3 4,28 15 101284121 Rb7 Nxe3 Qf8+ Kh5 fxe3 g4 Gambit 1.0 picked Rb7 for nearly one hour, when I stopped it. In any case, the +3.38 and +4.28 of both analysis are a mirage. Enrique >Sarah. > > > >>>; 00:00:00.1 6. Score: 3.92 depth: 7 Qf8+ Kh5 Rb7 Nxe3 fxe3 Re5 b4 Rd5 Qf7+ >>>Kg4 >>>; 00:00:00.1 6. Score: 4.06 depth: 8 Qf8+ Kh5 Rf7 Nxe3 fxe3 g4 g3 b4 Qg8 >>>Kh6 >>>; 00:00:02.3 6. Score: 4.04 depth: 9 Qf8+ Kh5 Rf7 Nxe3 fxe3 Qg6 b4 Rc6 Rb7 >>>Kh4 Rg7 >>>; 00:00:10.5 6. Score: 4.16 depth: 10 Qf8+ Kh5 Ra7 Nxe3 fxe3 g4 g3 Qg6 b4 >>>Rc6 Qe7 Kh6 >>>; 00:00:21.8 6. Score: 4.00 depth: 11 Qf8+ Kh5 Rf7 Nxe3 fxe3 g4 Qg8 Kh6 b4 >>>g3 Qg7+ Kh5 Qxg3 >>>; 00:00:31.1 6. Score: 4.10 depth: 11 Rb7 Nxe3 Qf8+ Kh5 fxe3 Re5 Qh8 Kh6 >>>Rf7 Re6 b4 >>>; 00:00:41.4 6. Score: 3.28 depth: 12 Rb7 Nxe3 Qf8+ Kh5 fxe3 Re5 Qh8 h6 b4 >>>Rd5 Qe8+ Kg4 Qe7 Rd1+ Kh2 >>>; 00:00:54.4 6. Score: 3.82 depth: 12 Qf8+ Kh5 Rf7 Nxe3 fxe3 Qg6 Ra7 g4 Ra8 >>>Qf5 g3 Qe5 Qf7+ Kh6 Kf1 >>>; 00:05:05.3 6. Score: 4.10 depth: 13 Qf8+ Kh5 Rb7 Nxe3 fxe3 g4 Qg8 h6 g3 >>>Qe5 Kf1 Rc6 Ra7 Qf5+ Kg1 Qe5 >>>; 00:07:54.7 6. Score: 3.38 depth: 14 Qf8+ Kh5 Ra7 Nxe3 fxe3 Qg6 Qc8 f5 b4 >>>Kg4 Kf2 h5 Qd7 f4 exf4 Kxf4 g3+ Ke5 >>>; 00:37:04.7 6. Score: 3.58 depth: 15 Qf8+ Kh5 Ra7 Nxe3 fxe3 Qg6 Qc8 f5 Kf2 >>>h6 b4 Qf6 Qg8 f4 Kg1 fxe3 Rg7 >>>; 01:23:50.4 6. Score: 3.38 depth: 16 Qf8+ Kh5 Ra7 Nxe3 fxe3 Re5 Qh8 h6 Rh7 >>>Qg6 c6 Rc5 c7 Rc1+ Kh2 g4 g3 Rc2+ Kg1 Rc1+ >>>; 02:01:52.4 6. Score: 3.38 depth: 16 Qf8+ Kh5 Ra7 Nxe3 fxe3 Re5 Qh8 h6 Rh7 >>>Qg6 c6 Rc5 c7 Rc1+ Kh2 g4 g3 Rc2+ Kg1 Rc1+ >>> >>>; Analysis completed >>> >>>Sarah.
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