Author: Peter Berger
Date: 15:12:26 02/27/01
Go up one level in this thread
On February 27, 2001 at 15:37:03, Sune Larsson wrote: > > [D]8/6k1/2p5/pp2p3/4P1K1/2PP4/P7/8 b - - 0 1 > > This is Damjanovic-Dvorecki, Vilnius 1978. Mistakes in the endgame are > punished severely. Here black is on the move and has to decide if he > wants to lose with 1.-c5??, thinks peace and draw is good enough with 1.-Kf6?, > or goes for the whole cheese with 1.-Kg6! Oh, this is just tiresome > calculation. No match for Kasparov, I guess. Computers? > > The game went like this: > > 1.-Kg6! [1.-c5?? 2.Kf5 b4 3.cxb4 cxb4 4.Kxe5 a4 5.Kd4+-] > [1.-Kf6? 2.Kf3 c5 3.Ke3 b4 4.d4! cxd4+ 5.cxd4 a4 6.dxe5+ Kxe5 7.Kd3=] > > 2.Kf3 [2.d4 exd4 3.cxd4 b4-+] 2.-c5 3.Ke3 [3.d4 cxd4 4.cxd4 b4! 5.Ke3 a4-+] > 3.-b4 4.d4 [4.cxb4 cxb4 5.Kd2 a4! 6.Kc2 Kg5 7.Kd2 Kf4-+] > 4.-cxd4+ 5.cxd4 a4! 6.Kd3 b3 7.axb3 a3 8.Kc2 exd4 9.b4 d3+ 0-1 > > Test: 1.-c5?? loses. If you are a programmer please rewrite your program > totally from scratch. If you are a consumer just > throw the damned thing. ;) > > 1.-Kf6? draws. Ok, peaceful mind - but you just missed some glory. > Programmers: Have a look at the evals - the right move > was just around the corner. > > 1.-Kg6! wins. Congrats! This is good stuff. Just hope the margin > to 1.-Kf6? was more than 0.02... > > Sune I noticed it has already been shown that this analysis is quite dubious although the variations after ...Kf6 are not completely convincing so far IMHO ; yet I wanted to add another machinehead opinion .. Bringer 1.8 beta on PIII500 : 0:00:00.4 ( 8/12) 27388 0.11 g7-f6 d3-d4 f6-e6 g4-f3 a5-a4 f3-e3 a4-a3 e3-d3 0:00:01.0 ( 9/14) 68331 0.30 g7-f6 d3-d4 b5-b4 c3xb4 a5xb4 d4-d5 c6xd5 e4xd5 e5-e4 0:00:01.7 (10/16) 120761 0.19 g7-f6 d3-d4 f6-e6 g4-f3 b5-b4 c3xb4 0:00:03.4 (11/19) 223786 0.22 g7-f6 d3-d4 b5-b4 c3xb4 a5xb4 d4-d5 0:00:07.8 (12/20) 534600 0.33 g7-f6 g4-f3 b5-b4 f3-e2 c6-c5 e2-d2 f6-e6 d2-c2 a5-a4 c3xb4 c5xb4 c2-d2 0:00:14.0 (13/20) 843790 0.42 g7-f6 g4-f3 b5-b4 c3xb4 a5xb4 0:00:16.1 (13/33) 1052572 0.43 g7-g6 0:00:17.1 (13/33) 1246520 0.44 g7-g6 g4-f3 c6-c5 f3-e3 a5-a4 e3-d2 0:00:22.7 (14/35) 1623314 0.45 g7-g6 g4-f3 c6-c5 f3-e3 a5-a4 e3-d2 b5-b4 d2-c1 g6-f7 c3xb4 0:00:35.4 (15/36) 2654855 0.45 g7-g6 g4-f3 c6-c5 f3-e3 a5-a4 e3-d2 b5-b4 d2-c1 g6-f7 c1-b1 f7-e7 b1-c2 e7-f6 0:00:50.0 (15/36) 3305873 0.46 g7-f6 0:01:19.0 (16/36) 4941089 0.46 g7-f6 g4-f3 c6-c5 f3-e3 a5-a4 e3-e2 f6-e6 e2-d2 0:02:36.4 (17/40) 9061026 0.54 g7-f6 g4-f3 c6-c5 f3-e3 a5-a4 e3-e2 b5-b4 e2-d2 f6-g5 0:04:54.8 (18/40) 17775669 0.62 g7-f6 g4-f3 c6-c5 f3-e3 a5-a4 e3-d2 a4-a3 d2-c2 0:06:37.7 (18/47) 25255494 0.63 g7-g6 0:09:40.8 (18/47) 74930089 0.81 g7-g6 g4-f3 c6-c5 f3-e3 b5-b4 e3-d2 a5-a4 d2-c1 g6-h5 0:18:30.6 (19/47) 159314363 1.21 g7-g6 0:26:19.2 (19/47) 233336751 1.37 g7-g6 g4-f3 c6-c5 0:44:52.0 (20/49) 322523296 1.52 g7-g6 g4-f3 c6-c5 f3-e3 b5-b4 e3-d2 a5-a4 d2-c2 g6-g5 c2-c1 g5-f4 c1-d2 b4-b3 a2xb3 a4xb3 c3-c4 b3-b2 d2-c2 f4-e3 c2xb2
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