Author: J. Wesley Cleveland
Date: 10:43:51 07/19/01
Go up one level in this thread
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
>
>>>Be5 3.f6+ Kf7 4.Qxe5 Nd3+
>>>5.Ka3 Nxe5 6.Rc1 Rc8 7.Rxc8 Bxc8 8.Nd4 Ng6 9.h5 Nf4 10.Bd1 h6 1/2-1/2
>>>
>>>Pierre
>>
>>Crafty thinks it is a win for white until 10.Bd1.
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.