Author: Dann Corbit
Date: 11:28:10 07/19/01
Go up one level in this thread
On July 19, 2001 at 13:43:51, J. Wesley Cleveland wrote: >On July 18, 2001 at 18:40:53, Dann Corbit wrote: > >>On July 18, 2001 at 18:21:21, J. Wesley Cleveland wrote: >> >>>On July 18, 2001 at 11:21:30, Pierre Bourget wrote: >>> >>>>On July 17, 2001 at 21:26:12, Dann Corbit wrote: >>>> >>>>>After a post a few days ago about ECM 993, I decided to investigate it. >>>>>After a lengthy analysis, it seems like the "best move" leads to certain doom. >>>>>While the program and the experts seem to agree on which move to make, a move >>>>>that leads to defeat hardly seems worth the title 'best move'. >>>>> >>>>>Hence, I am asking, "What game did this position come from -- I can' find it." >>>>>And I am asking (game or no game) "What is the supposed correct line?" >>>>> >>>>>[D]5r2/1b2k2p/3bp3/5PP1/Bn1Q3P/1N6/1Pr5/1K3R2 b - - acd 42; bm Rxb2+; ce -1362; >>>>>id "ECM.993"; pv Rxb2+ Kc1 Rc8+ Kxb2 Be5 f6+ Kf7 Bd7 Bxd4+ Nxd4 Nd3+ Kb1 Rd8 >>>>>Bxe6+ Kf8 Nf5 Bg2 Rg1 Nf4 Ng7 Rb8+ Kc2 Be4+ Kd2 Nxe6 Nxe6+ Kf7 Re1 Kxe6 Rxe4+ >>>>>Kf5 Re7 Rb2+ Kc3 Rb8 Rxh7 Rc8+ Kd2 Ra8 Rg7 Ra2+ Ra2+ Kc3 Ra3+ Kb2 Rf3 g6 Rf2+ >>>>>Kc3 Kg4 f7 Kh3 Rg8 Rf3+ Kd2 Rg3 g7 Rg2+ Kc3 Kh2 f8=Q Rg3+ Kd2 Rg2+ Ke3 Kh1 Rh8; >>>>>c0 "pv, ce and acd are speculative"; >>>> >>>>The game is Kotkov-Scerbakov USSR 1968. >>>>ECM 1st edition gives ...Rxb2 !! 2.Kxb2 (2.Qxb2 Be4=) >> >>Isn't Kxb2 or Qxb2 a mistake here? >>Kc1 seems to win for white. > >Crafty prefers Kc1 through ply 14 (pv Kc1 Rc8+ 2. Kxb2 Be5 3. fxe6 Nd3+ > 4. Ka3 Bxd4 5. Nxd4 <HT>) >then switches to Kxb2 Even so, I am convinced it is a mistake.
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