Barbican (London) Rapidplay 1989
 |
| Black has just captured on e6 |
*****
*****
*****
*****
Black's king is more centralised, and White has a backward e pawn, but neither factor seems very important - the position is dead-equal, according to analysis engines Stockfish10 and Komodo10.
26.Kf3 h5
Komodo10 reckons 26...f5 27.Kf4 Kf6 is a tiny bit better for Black, which is why the engine preferred 26.g4. Stockfish10 rates the position after 27...Kf6 as still dead-equal.
27.e4 dxe4+ 28.Kxe4
We now have rival pawn majorities, which makes it much easier to go wrong, as Black does immediately.
*****
*****
*****
*****
*****
28...f5+?
A useful general rule-of-thumb is that you should first advance the unopposed pawn of a pawn majority. But here that rule-of-thumb is wrong as, after the text, White's h pawn is holding up two black pawns. And since the white g pawn is holding up the f pawn, Black's pawn majority can no longer make a passed pawn with normal play.
Indeed, after ...
29.Kf4
... Black is obliged to reply ...
29...Kf6
(29...g6 30.Kf5 Kf7 is no improvement) ... and White is free to create a winning passer on the queenside.
30.c4 g6 31.d5 cxd5 32.cxd5 a5 33.b3 b5 34.a4 b4 35.g3
Having this reserve tempo is nice, but it is not necessary as 35.d6 also wins.
35...Ke7 36.Ke5 1-0
No comments:
Post a Comment