Author: John Merlino
Date: 18:28:49 07/01/05
Go up one level in this thread
On July 01, 2005 at 21:13:34, Ricardo Gibert wrote: >On July 01, 2005 at 19:44:38, John Merlino wrote: > >>On July 01, 2005 at 19:23:33, Marc D wrote: >> >>>[D]R7/2r2k2/p5P1/1p6/1P4N1/1KB5/P5r1/8 b - - 0 38 >>> >>>This was a game between Sikula(2457)and Blaszik(1964) >>> >>>Why did black (have to) resign? >>> >>>Wondering >>>Marc >> >>38...Ke7 is forced. (If 38...Kxg6 39.Rg8+ and Black will lose his g2 Rook -- if >>38...Ke6 39.Rxa6 and things go downhill from there.) >> >>So, after 38...Ke7 39.Ne3 Rxg6 40.Nd5+ Kd7 41.Nxc7 Kxc7 appears to be forced >>also, and now White is up a piece. > >Or 39.b7 Rg3 40.b8=Q (or 40.Re8+ Kd6 41.Ne3 +-) Rgxc3+ 41.Kb2 Rc2+ 42.Ka3 R2c3+ >43.Qb3 +- >There is no "might be a theoretical draw." This is one of those positions where >computer do poorly, because they can't plan. The win is long winded, but not in >doubt. Just about any line will result in White having a Rook, a Bishop/Knight, and two Pawns, against Black with a Rook and two Pawns. One line results in the Rooks being traded off as well, and it appears that this one does win, but Black can avoid it. 38...Ke7 39.g7 Rg3 40.Re8+ Kd6 41.Ne3 Rcxg7 42.Nf5+ Kd7 43.Nxg7 Rxg7 44.Bxg7 Kxe8 Here are several possible positions that Black can steer the game to: [D]R7/4k3/p1r5/1p6/1P4N1/1K6/P7/8 w - - 0 7 [D]R7/2k5/p5r1/1p6/1P6/1KB5/P7/8 w - - 0 4 [D]6R1/2r1k3/p7/1p6/1P6/1KB5/P7/8 b - - 0 4 [D]4R3/8/p2k4/1p6/1P4N1/1K6/P1r5/8 b - - 0 8 Are you guaranteeing that there is some line in which White will be able to force the win of a pawn? If Black can force the trade of both Pawns, it's a draw. I'm not saying that you're wrong, but I'd love to see you prove that you're right. :-) jm
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