Author: Harald Faber
Date: 22:17:06 06/15/03
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On June 15, 2003 at 16:01:52, Dieter Buerssner wrote: >On June 15, 2003 at 13:29:39, Harald Faber wrote: > >>What do all the ELO 2700 programs really know of endgames? >>Check yourself! >> >>6R1/8/2k3P1/2p5/6r1/1KP5/8/8 w - - 0 1 >> >>Check the variation if the computer finds the way! >> >>1. c4 (1. g7? c4+! 2. Kb4 Kb7 3. Kb5 Ka7 4. Kc6 Rg6+) 1... Rg3+ 2. Kc2 >>Kb7 3. g7 Ka7 4. Kd2 Kb7 5. Ke2 Ka7 6. Kf2 Rg5 7. Kf3 Kb7 8. Kf4 Rg1 9. Ke5 Rg2 >>10. Kd5 Rg5+ 11. Kd6 Ka7 12. Kc6 1-0 > >How do you continue after 1. c4 Rg3+ 2. Kc2 Kd7 ? > >Regards, >Dieter With 3.g7. ;-) OK, I see the point: 3...Ke7 4.Ra8 Rxg7 5.Ra7+ Kf6/f8 6.Rxg7 Kxg7 draw, also 4.Rc8 Rxg7 5.Rxc5 draw. This position and line was taken from the current SchachMagazin 64, issue 11/2003 p.300 and again shows: "Believe it but check it". You found the fly in the soup. ;-) Based on SM 64, the position is taken from Dvorecki "Endgame university" which fortunately I own so I looked this position up. I can say that the author of SM 64 didn't copy well or implemented this wrong line as a learning feature. ;-) In the book - German issue p.254, game Ljubojevic-Gligoric Belgrad 1978 - Dvorecki gives: 1.g7 Kb7?? (To a draw leads 1...c4+ 2.Kb4 Kb7 3.Kb5 Ka7 4.Kc6) 2.c4 Rg2 3.Kc3 1-0 and quotes Milic and Bozic from Informator 27 who claim a white win after 1.c4 Rg3 2.Kc2. Dvorecki writes this is wrong because of 2...Kd6 3.g7 Ke7 and draw - which is indeed the idea you followed. So Dvorecki is right and the line in SM 64 is wrong. Do you write the letter to the editor or shall I ... ? ;-) Thanks for pointing this out!
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