OK, I have not spent any time looking at this in depth, nor have the time, but
white is simply better, if not positionally winning, before, 12... Bxc3?
The text-move is a very poor positional move, giving up the dark-squared bishop
for absolutely nothing at all. Black has so many other better moves and had to
keep this on the board, for control of some useful squares. Giving white the
bishop-pair is unforgivable. After this ill-advised exchange, white has total
control of the dark-squares. White has the centre and will eventually push
through in the centre. White has the better of it, and I would be disappointed
if white did not have a tremendous game in the middle-game, but after 12...
Bxc3, I would be very seriously annoyed if I did not beat black from there on.
12... Be7, 12... Ba5 or even 12... a5 are all perfectly acceptable moves for
black and should be played, without any doubt at all.
I have no clue at all what is going on on move 16. Bxf6 is a dreadful move too
and just loses tactically on the spot. Surprising that an attacking player did
not see the simple 16... bxc4 gaining tempo on the white queen. Black is just a
piece up and white should resign then. 16. Be3 keeps the advantage to white and
although it will take longer, white is still clearly better.
Of course, once white has foolishly taken on b5, then the game is simple enough
for black. The back-rank is always going to be weak and the a7-g1 diagonal will
be vulnerable to a check, forcing the white king into the corner. The back-rank
will be easy enough to collapse. That is not a complicated concept to see. As
soon as exchanges occurred on b5, the C-pawn becomes a target, which can be
undermined by b5-b4. I would know that tactics would be available for
back-rankers and have no doubt that black could win from there on.
White should not exchange on b5, but put his queen on b4 and seek queen
exchanges as much as possible.
Playing strange ideas like Rad1 and Rfe1 accomplish nothing at all for white.
After move 16, white went astray and never played a decent move thereafter.
OK, all said in a brief, brief glance.
Take it easy
Chris
From: usbca_chess-bounce@xxxxxxxxxxxxx
[mailto:usbca_chess-bounce@xxxxxxxxxxxxx] On Behalf Of Karma Könchog Jungné
Sent: Sunday, July 17, 2016 9:36 PM
To: usbca_chess@xxxxxxxxxxxxx
Subject: [usbca_chess] The Art of the Sacrifice
See if you can figure out the move on which I first began envisioning and
plotting this sacrifice.
[Event "Walter Muir CC
[Site "ICCF"]
[Date "2008"]
[Round "-"]
[White "Tom Becker"]
[Black "Patrick Walsh"]
[Result "0-1"]
1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dxc4 5. a4 Bf5 6. e3 e6 7. Bxc4 Bb4 8.
Ne5 Nbd7 9. Nxd7 Qxd7 10. O-O O-O 11. f3 Rfd8 12. Qb3 Bxc3 13. bxc3 a6 14.
e4 Bg6 15. Bg5 b5 16. Bxf6 gxf6 17. axb5 cxb5 18. Bd3 h5 19. Rad1 Rdc8 20.
Rfe1 Qc7 21. Rc1 Qf4 22. c4 bxc4 23. Bxc4 f5 24. d5 exd5 25. exd5 Rc5 26.
Rc3 Rac8 27. Rec1 Qd4+ 28. Kh1 f4 29. Rd1 Rxc4 30. Rxd4 Rxc3 31. Qd1 Rc1
32. d6 Rxd1+ 33. Rxd1 Bf5 34. g3 fxg3 35. hxg3 Bd7 36. Rd5 f5
*
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