Author: Enrique Irazoqui
Date: 11:52:56 05/20/00
Go up one level in this thread
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. 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
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