Author: John Merlino
Date: 15:22:54 11/10/04
Go up one level in this thread
On November 10, 2004 at 14:57:27, Albert Silver wrote: >On November 10, 2004 at 13:37:23, John Merlino wrote: > >>On November 10, 2004 at 12:11:55, Albert Silver wrote: >> >>>The following position was played in absolutely brilliant fashion by GM >>>Averbakh. The endgame was showed by Yar (many thanks) and does provide a good >>>test position to boot. >>> >>>[Event "URS-ch sf"] >>>[Site ""] >>>[Date "1973"] >>>[Round ""] >>>[White "Makarichev Sergey"] >>>[Black "Averbakh Yuri L"] >>>[Result "0-1"] >>>[Eco "C44"] >>>[Annotator ""] >>>[Source "EXT 2001"] >>>[SetUp "1"] >>>[FEN "8/2p5/5p1p/5Bp1/3k4/2p2PbP/4K1P1/8 b - - 0 45"] >>> >>>45...Ke5 46.Bc2 Kf4 47.Bb1 Bh2 48.Kf2 Bg1+ 49.Ke2 Kg3 50.Kf1 >>>Bf2 51.Bc2 f5 52.Bb1 f4 53.Bg6 Be3 54.Bc2 h5 55.Bf5 c5 56.Bg6 >>>h4 57.Bf5 g4 58.hxg4 h3 59.gxh3 Kxf3 60.g5 Kg3 61.g6 Bd4 62.h4 >>>f3 63.h5 Bg7 64.Ke1 f2+ 0-1 >>> >>>I doubt very much an engine can reach the key position, though it's possible, >>>but the key position alone should provide a good endgame challenge for the >>>engines: >>> >>>[D]8/8/8/2p2Bp1/5p1p/2p1bPkP/6P1/5K2 b - - 0 57 >>> >>>And the winning move is 57...g4!! >>> >>>Albert >> >>In the line that was played in the game, how does Black win after 62.Ke2? >> >>jm > >Sorry, I got the diagram after 62.Ke2 wrong. Here is the fixed post: > >One of the key factors in this endgame are the doubled c-pawns. The fact that >there are two ensures the win. Look at it this way: if I bring my king over to >the c-pawn and force you to sacrifice the bishop for it (you can't guard both >the f-pawn AND the c-pawn due to the distance between the two) I still have a >second c-pawn to queen with. So a sample continuation after 62.Ke2 might be: > >[D]8/8/6P1/2p2B2/3b1p2/2p3kP/4K3/8 b - - 0 62 > >62...f3+ > >a) 63.Kf1 Kf4 64.Bb1 Ke3 65.h4 (what else? 65.Ke1 f2+ 66.Kf1 Kd2 67.h5 Bg7! is >no better) Kd2 66.h5 Bg7 67.c2 0-1 > >b) 63.Ke1 Kf4 64.Bb1 Ke3 65.h4 (transposing to the note in parentheses above) >f2+ 66.Kf1 Kd2 67.h5 Bg7 0-1 > > Albert Ok, I understand. Thanks for the endgame lesson. :-) jm
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