Author: Ricardo Gibert
Date: 14:38:32 05/20/00
Go up one level in this thread
On May 20, 2000 at 14:52:56, Enrique Irazoqui wrote: >On May 20, 2000 at 14:08:51, Ricardo Gibert wrote: > >>On May 20, 2000 at 13:20:47, Bruce Moreland wrote: >> >>>On May 20, 2000 at 10:04:58, Ricardo Gibert wrote: >>> >>>>On May 20, 2000 at 09:27:39, Robert Hyatt wrote: >>>> >>>>>On May 20, 2000 at 07:11:31, Terje Vagle wrote: >>>>> >>>>>>1r6/5kp1/RqQb1p1p/1p1PpP2/1Pp1B3/2P4P/6P1/5K2 b - - >>>>>> >>>>>>After 45. Ra6, Fritz suggests Qe3 for black and evaluates the position as 0,94. >>>>>>It does not seem to find the famous draw-line for Kasparov. >>>>>>10 hours analysis on PIII-600, and 28006383 KN evaluated >>>>>> >>>>>>Does any other program find the draw-line? >>>>>> >>>>>> >>>>>>Regards >>>>>> >>>>>> >>>>>>Terje >>>>> >>>>>The draw is somewhere around 60 plies deep, total. I don't think anyone is >>>>>going to find that. >>>> >>>>60 plies? No way. More like half that. A lot of humans have no trouble >>>>calculating the draw to the end. I found it myself without any assistance of any >>>>kind. The only thing difficult about that draw is the psychological barrier. >>>>This Kaspy failed to overcome as we all know. >>>> >>>>As for computer programs, judging from the Chris Janeke post, commercial >>>>programs have no trouble finding the draw with a 5 ply headstart. If it were >>>>really 60 plies, I don't see how that would be possible. >>> >>>Oh yeah? You'd see the part that goes h4 h5? It's not that easy. I helped >>>analyze this with a GM and an IM the day it happened, and they spent hours >>>trying to prove that there was a win. >> >>Yeah. I found h4 too and I remember the only reply I considered was h5. > >Is this the drawing line? The evaluation of Fritz 6b is not 0.00, but it's >getting there. 45...Qe3 46 Qxd6 (46 Qd7 Kg8) Re8 47 Bf3 Qc1+ 48 Kf2 Qd2 49 Be2 Qf4 50 Ke1 Qc1 51 Bd1 Qxc3 52 Kf1 Qc1= If 47 h4 h5 48 Bf3 Qc1 49 Kf2 Qd2 50 Kg3 Qe1= > >Enrique > >Deep Blue - Kasparov,G >1r6/5kp1/RqQb1p1p/1p1PpP2/1Pp1B3/2P4P/6P1/5K2 b - - 0 1 > >Analysis by Fritz 6: > >45...Qxc6-- > ± (0.72) Depth: 1/3 00:00:00 >45...Qxc6-- > ± (0.72) Depth: 1/6 00:00:00 >45...Qxc6 46.dxc6 Bc7 > ² (0.47) Depth: 2/7 00:00:00 >45...Qxc6 46.dxc6 Bc7 47.Ra7 > ² (0.62) Depth: 3/10 00:00:00 >45...Qxc6 46.dxc6 Bc7 47.Ra7 Rc8 > ² (0.59) Depth: 4/10 00:00:00 1kN >45...Qxc6 46.dxc6 Bc7 47.Ra7 Rc8 48.g3 > ² (0.69) Depth: 5/12 00:00:00 3kN >45...Qxc6-- > ± (1.00) Depth: 6/16 00:00:00 8kN >45...Qxc6-- 46.dxc6 Be7 47.Bd5+ Ke8 48.c7 Rc8 49.Ra7 > ± (1.12) Depth: 6/16 00:00:00 11kN >45...Qxc6 46.dxc6 Bc7 47.Ra7 Rc8 48.Rb7 Ke7 49.Rxb5 > ± (1.22) Depth: 7/18 00:00:00 31kN >45...Qxc6 46.dxc6 Bc7 47.Ra7 Rc8 48.Rb7 Ke7 49.Ke2 Kd6 50.Rxb5 > ± (1.28) Depth: 8/16 00:00:00 59kN >45...Qxc6 46.dxc6 Rd8 47.Ra7+ Kf8 48.Rb7 Rb8 49.Rd7 > ± (1.37) Depth: 9/18 00:00:00 131kN >45...Qxc6 46.dxc6 Kf8 47.Ra7 Rc8 48.Rb7 Ra8 > +- (1.44) Depth: 10/21 00:00:00 309kN >45...Qxc6 46.dxc6 Kf8 47.Ra7 Rc8 48.Rb7 Ra8 > +- (1.44) Depth: 11/22 00:00:01 517kN >45...Qxc6 46.dxc6 Kf8 47.Ra7 Rc8 48.Rb7 h5 49.Rxb5 Ke7 50.Bd5 > +- (1.62) Depth: 12/24 00:00:05 2353kN >45...Qxc6 46.dxc6 Kf8 47.Ra7 Rc8 48.Rb7 Ke8 49.Rxg7 Ra8 50.c7 > +- (1.72) Depth: 13/27 00:00:08 4066kN >45...Qxc6 46.dxc6 Kf8 47.Ra7 Rc8 48.Rb7 h5 49.Rxb5 Ke7 > +- (1.72) Depth: 14/26 00:00:14 7078kN >45...Qxc6 46.dxc6 Kf8 47.Ra7 Rc8 48.Rb7 h5 49.Rxb5 Ke7 50.Ra5 > +- (1.75) Depth: 15/28 00:00:26 12926kN >45...Qe3! > +- (1.72) Depth: 15/41 00:01:33 43976kN >45...Qe3! 46.Qd7+ Kg8 47.Qxd6 Rf8 48.Qe6+ Kh7 49.Bf3 Qc1+ 50.Kf2 > ± (1.25) Depth: 15/41 00:02:03 57808kN >45...Qe3 46.Qxd6 Re8 47.h4 h5 48.Bf3 Qc1+ 49.Kf2 Qd2+ 50.Be2 > +- (1.53) Depth: 16/42 00:05:13 146128kN >45...Qe3 46.Qxd6 Re8 47.h4 h5 48.Bf3 Qc1+ 49.Kf2 Qd2+ 50.Be2 > ± (1.28) Depth: 17/46 00:13:16 369407kN >45...Qe3 46.Qxd6 Re8 47.h4 h5 48.Bf3 Qc1+ 49.Kf2 Qd2+ 50.Be2 > ± (1.16) Depth: 18/46 00:32:34 906397kN > >(P600E/202MB, Cadaqués 20.05.2000) > > >> It is >>not a deep idea. I'm 2411 on ICC. I also know other masters who found this too. >>It is not so difficult. Do not be impressed by the hyperbole in the press. >>Masters can find much more difficult ideas than this. Any strong player can work >>it out. >> >>What you don't understand is the player on the black side is forced to find it. >>Nothing else is even close to workable. It does not take long to realize Qe3, >>the only chance, is hard to refute and concluding that it is draw after that is >>not so far off. You are led by the nose to find it. Kaspy failed to find it, >>because he was psyched out. He could not make the psychological readjustment >>after having had a lost position for so long. More than other world champions, >>he is a very emotional player. >> >>> >>>bruce
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.