| Jun-28-20 | | mel gibson: The first move is obvious.
Stockfish is calling it as less than a pawn difference: 12... Bxf6
(12. .. Bxf6
(♗e7xf6 f3xe4 ♗f6-e5 ♘g1-f3 ♗e5-d6 ♔c1-b1 ♖e8xe4 ♘d5-c3 ♖e4-e7 ♗f1-c4
♗d7-e6 ♗c4xe6 ♖e7xe6 ♖h1-f1 ♕d8-e8 ♘f3-g5 ♖e6-f6 ♕f2-h4 ♖f6-h6 ♕h4-f2 f7-f6
♘g5-e4 ♗d6-e5 h2-h3 ♖a8-d8 ♘c3-d5 ♗e5xb2 ♔b1xb2 ♕e8xe4 ♖f1-e1 ♕e4-c4 ♕f2-e3
♖d8-f8 ♕e3-b3 ♖h6-h4 c2-c3 a7-a5 ♘d5xc7 ♖h4-f4 ♕b3xc4+ ♖f4xc4 ♘c7-d5)
+0.87/39 260)
score for Black +0.87 depth 39 |
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| Jun-28-20 | | drollere: i did get the first two moves so they must be obvious, but i didn't see how the bishop sacrifice would gain a tempo and allow the p to advance. igor went in with both feet. |
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| Jun-28-20 | | Predrag3141: Black seems to have been planning this starting at least with 10 … Bd7. If White captures on f6 then, instead of interposing 11 Nd5 Be7, the same idea applies: Black abandons his bishop on d7 in exchange for a queenside attack: 11 Bxf6 Qxf6 12 Rxd7 Bxc3 13 bxc3 Qxc3
Here as in the actual game, drawing Black's queen out to win the bishop on d7 is a bad idea for White. Better is to pause for a move and trade off the e4-pawn. White is just a pawn down. Probably a book trap. |
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| Jun-28-20 | | devere: The actual problem is on Black's 13th move. Qxf6 is a nice sacrifice. White's 13th move should have been fxe4, and then Black has only a small advantage. |
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| Jun-28-20 | | stacase: I was happy to get the first 3 moves (-: |
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| Jun-28-20 | | mel gibson: < devere: The actual problem is on Black's 13th move. Qxf6 is a nice sacrifice. White's 13th move should have been fxe4, and then Black has only a small advantage.> Yes - Black's reply was wrong.
Stockfish 11 shows that. |
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| Jun-28-20 | | Brenin: 11 ... e3, threatening Bd2+ followed by e2, looks like a better plan than 11 ... Be7, which is (or at least should have been) answered as <devere> wrote by 12 Bxf6 Bxf6 13 fxe4, e.g. 13 ... Rxe4 14 Nxf6+ gxf6 (Qxf6 15 Qxf6 gxf6 16 Rxd7) 15 Bd3 with plenty of compensation for the P. Black does better to decline the P on move 13 by 13 ... Be5 or Bh4, with a slight positional plus (2 Bs, better Ps, better development). |
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| Jun-28-20 | | agb2002: Black has a pawn for a knight.
White threatens 13.Nxe7+ N(R)xe7 14.Qg3 and 13.Qg3 Bxf6 14.Nxf6+ Qxf6 15.Rxd7. In the second threat both d7 and a2 would end up defenseless. This suggests 12... Bxf6 13.Nxf6+ (13.fxe4 Bg5+ 14.Kb1 Rxe4 wins a pawn but White gets the initiative after 15.Nf3 Bh6 16.Bd3) 13... Qxf6 14.Rxd7 Qe6 15.Rxc7 e3 followed by Qxa2, Rad8, Nb(d)4 and the attack seems to compensate the piece. |
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| Jun-28-20 | | goodevans: <devere: [...] White's 13th move should have been fxe4, and then Black has only a small advantage.> <Brenin: 11 ... e3, threatening Bd2+ followed by e2, looks like a better plan than 11 ... Be7...> Maybe black set a trap and white just fell right into it. If this were blitz then I'd be pretty certain that that was it but it's rapid and so you'd think white would be more suspicious that his opponent had just 'blundered' a piece. |
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| Jun-28-20 | | RandomVisitor: After 12...Bxf6, building on what <mel gibson> posted earlier:
click for larger viewStockfish_20061707_x64_modern:
<54/79 -0.52 13.fxe4 Bh4 14.g3 Be7> 15.Bg2 Ne5 16.Nf3 Bd6 17.Kb1 Be6 18.Nf4 Qf6 19.Nxe6 Qxe6 20.Nxe5 Bxe5 21.a3 g6 22.h4 Rad8 23.h5 Qb6 24.Qxb6 axb6 25.g4 Kg7 26.Bf3 Kf6 27.Rxd8 Rxd8 28.Rd1 Rxd1+ 29.Bxd1 Kg5 30.Kc1 Kf4 31.c3 Kxe4 32.hxg6 fxg6 |
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| Jun-29-20 | | RandomVisitor: A final look, after 12...Bxf6
click for larger viewStockfish_20061707_x64_modern:
<65/99 12:38:57 -0.58 13.fxe4 Bh4 14.g3 Be7> 15.Kb1 Bd6 16.Bg2 Ne5 17.Nf3 Bg4 18.Nxe5 Bxe5 19.Bf3 Be6 20.Rhf1 c6 21.Nf4 Qe7 22.Nxe6 Qxe6 23.Be2 Re7 24.Qf3 a5 25.Qg4 Qxg4 26.Bxg4 g6 27.a4 h5 28.Be2 Kg7 29.Rd2 Bc7 30.Bf3 Rh8 31.Rfd1 Kf8 32.Rd7 Rh7 |
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| Jun-29-20 | | RandomVisitor: After 5...Bb4 perhaps best is the simple 6.a3
click for larger viewStockfish_20061707_x64_modern:
<56/83 3:24:39 +0.28 6.a3 Bxd2+ 7.Nxd2> 0-0 8.0-0-0 d5 9.Ne2 Re8 10.Qg3 Nxe4 11.Nxe4 Rxe4 12.Nc3 Rd4 13.Rxd4 Nxd4 14.Qe5 Nc6 15.Qxd5 Be6 16.Qe4 Qd4 17.Bd3 g6 18.Qxd4 Nxd4 19.Be4 Rb8 20.Rd1 c5 21.Bd3 Kg7 22.a4 Rd8 23.b3 h6 24.Nb5 Nxb5 25.axb5 Kf6 55/15 3:24:39 0.00 6.Ne2 0-0 7.a3 Be7 8.Nbc3 Ne5 9.Qg3 d6 10.0-0-0 Nh5 11.Qe3 Ng4 12.Qf3 Ne5 55/82 3:24:39 -0.17 6.Bd3 0-0 7.a3 Bxd2+ 8.Nxd2 d5 9.0-0-0 Re8 10.Ngf3 Bg4 11.Kb1 Bh5 12.Rde1 Bxf3 13.Qxf3 Ne5 14.Qe3 h6 15.Rhf1 Nxd3 16.Qxd3 dxe4 17.Nxe4 Nxe4 18.Rxe4 Qxd3 19.cxd3 f5 20.Re3 Kf7 21.g3 Re7 22.Rxe7+ Kxe7 23.a4 Re8 24.Kc2 Kd6 25.Kd2 a5 |
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Kibitzing
sac: 12...Bxf6