Author: Ed Schröder
Date: 12:09:48 05/20/00
Go up one level in this thread
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. More: after all the checking moves there is a quiet move on ply 30 (or so) which will cause a pruning. No surprise no program has found the draw yet. Somewhere on my pages is the full analysis of this immortal position. Ed >bruce
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