Author: Amir Ban
Date: 17:27:44 10/06/97
Go up one level in this thread
On October 06, 1997 at 14:28:24, Ed Schröder wrote: >On October 06, 1997 at 12:07:49, Amir Ban wrote: > >>On October 05, 1997 at 07:06:03, Chris Whittington wrote: >> >>> >>>On October 05, 1997 at 04:08:43, Amir Ban wrote: >>> >>>> >>>>Let's try to analyze the critical variation in DB-GK game 2. The move is >>>>36 (axb5 was played, don't confuse it with move 37). >>>> >>>>The variation to look at is after 36. Qb6 Qe7 37. axb5 Rab8 38. Qxa6 e4 >>>>39. Bxe4 Qe5. What does Black have here ? >>>> >>>>At ply (or whatever) 10, DB gives this PV: >>>> >>>>Qb6 Qe7 axb5 Rab8 Qxa6 e4 Bxe4 Qe5 Bf3 (at lower depths it tries g4) Bf3 >>>>Rd8 Qa7 Qxc3 Bh5 +0.74. >>>> >>>>At ply 11, there is no PV and the eval is +0.48. >>>> >>>>This variation was mentioned by Seirawan in his analysis, and the GK >>>>team used Hiarc & Fritz to analyze it to death. >>>> >>>>Junior, by the way, likes an intermediate 37...a5, which creates the >>>>same position but with Ra2 misplaced. >>>> >>>>What do you make of this ? [snip] >>Ed, how about giving this analysis a shot ? > > >Here is the text from my home page. >To me this is the longest defense. > >- Ed - > >~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > >Rr6/5kp1/1qQb1p1p/1p1PpP2/1Pp1B3/2P4P/6P1/5K2 w - - id DEEP BLUE - >Kasparov,G; > >Analysing this with Rebel we tried to find out the longest defense >till the draw (repetition) would be found. Well it is at least 36 plies. >Even for DB super machine that's too much. > >The line goes like this... > >45.Ra6? Qe3! 46.Qxd6 Re8! 47.h4! h5! 48.Bf3 Qc1+ 49.Kf2 Qd2+ 50.Be2 Qf4+ >51.Kg1 Qe3+ 52.Kh2 Qf4+ 53.Kh3 Qxf5+ 54.Kh2 Qf4+ 55.Kg1 Qe3+ 56.Kf1 Qc1+ >57.Kf2 Qf4+ 58.Ke1 Qc1+ 59.Bd1 Qxc3+ 60.Kf1 Qc1! 61.Ke2 Qb2+ 62.Kf1 Qc1 > >Note 60..Qc1! > >It's a (quiet) non checking move. Perhaps the reason why no >program can find 45..Qe3 with a draw score? > Ed, you're on the wrong page. We are talking about the controversial move 36. Amir
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