Speaking of passed pawns, Rybka has a Morphy moment

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Dann Corbit
Posts: 12542
Joined: Wed Mar 08, 2006 8:57 pm
Location: Redmond, WA USA

Speaking of passed pawns, Rybka has a Morphy moment

Post by Dann Corbit »

Code: Select all

[Event "Togas"]
[Site "DCORBIT2008"]
[Date "2010.02.03"]
[Round "1"]
[White "TogaIIMerge_b15_18x64dc"]
[Black "Rybka 3"]
[Result "0-1"]
[BlackElo "3000"]
[ECO "C42"]
[Opening "Russian Game"]
[Time "03:05:08"]
[Variation "Classical, Jänisch, Main Line"]
[WhiteElo "3000"]
[TimeControl "300+5"]
[Termination "normal"]
[PlyCount "77"]
[WhiteType "program"]
[BlackType "program"]

1. e4 e5 {(e7e5 Ng1f3 Ng8f6 Nb1c3 Nb8c6 Bf1c4 Nf6xe4 Nc3xe4 d7d5 Bc4d3
d5xe4 Bd3xe4 Bf8d6 OO OO d2d3 f7f6 Be4d5+) -0.02/15 10} 2. Nf3 Nf6 {(Ng8f6
Nf3xe5 d7d6 Ne5f3 Nf6xe4 Nb1c3 Ne4xc3 d2xc3 Bf8e7 Bf1c4 OO OO Nb8c6 Rf1e1
Bc8f5 Qd1e2 Qd8d7) -0.08/15 10} 3. Nxe5 d6 {(d7d6 Ne5f3 Nf6xe4 Nb1c3 Ne4xc3
d2xc3 Bf8e7 Bf1c4 OO OO Nb8c6 Qd1e2 Bc8f5 Bc1e3 Qd8d7) -0.14/15 9} 4. Nf3
Nxe4 {(Nf6xe4 d2d4 d6d5 Bf1d3 Bf8d6 OO OO c2c4 Rf8e8 c4xd5 Nb8d7 Nb1c3
Nd7f6) -0.11/15 11} 5. d4 d5 {(d6d5 Bf1d3 Nb8c6 OO Bf8e7 Rf1e1 OO c2c4
Ne4f6 Nb1c3 d5xc4 Bd3xc4 Be7d6 h2h3 Bc8f5 Nf3h4) -0.19/15 22} 6. Bd3 Nc6
{(Nb8c6 OO Bf8e7 c2c4 Ne4f6 Rf1e1 OO Nb1c3 h7h6 c4c5 Bc8g4 Bc1e3 Qd8d7 h2h3
Bg4h5) -0.23/15 24} 7. O-O {(OO Bf8e7 c2c4 Ne4f6 Nb1c3 OO c4xd5 Nf6xd5
Rf1e1 Bc8g4 h2h3 Bg4e6 Nc3xd5 Qd8xd5 Qd1c2 f7f5 Bc1f4) +0.18/15 12} Be7
{(Bf8e7 c2c4 Ne4f6 Rf1e1 OO Nb1c3 h7h6 c4c5 Bc8g4 Bc1e3 Qd8d7 h2h3 Bg4h5)
-0.23/16 12} 8. c4 {(c2c4) +0.01/1 0} Nb4 {(Nc6b4 c4xd5 Nb4xd3 Qd1xd3
Qd8xd5 Rf1e1 Bc8f5 g2g4 Bf5g6 Nb1c3 Ne4xc3 Qd3xc3 Ke8f8 Bc1f4) -0.17/15 22}
9. Be2 {(Bd3e2) +0.01/1 0} O-O {(OO Nb1c3 Bc8e6 c4xd5 Ne4xc3 b2xc3 Nb4xd5
Bc1d2 Be7f6 Ra1b1 b7b6 Be2d3 Qd8d6 Rf1e1 h7h6) -0.16/15 22} 10. Nc3
{(Nb1c3) +0.01/1 0} Re8 {(Rf8e8 a2a3 Ne4xc3 b2xc3 Nb4c6 c4xd5 Qd8xd5 Ra1b1
a7a6 c3c4 Qd5d6 d4d5 Nc6e5 Nf3xe5 Qd6xe5 Be2d3 Be7d6 g2g3 b7b6 Bc1f4 Qe5f6
Bf4xd6) -0.13/15 16} 11. Qb3 {(Qd1b3 Bc8e6 c4c5 a7a5 a2a3 Nb4a6 Be2d3
Ne4xc3 Qb3xc3 Qd8c8 c5c6 f7f6 Bc1f4 Be6g4 c6xb7 Qc8xb7 Qc3xa5) +0.50/14 8}
a5 {(a7a5 a2a3 Ne4xc3 b2xc3 a5a4 Qb3b2 Nb4c6 c4xd5 Qd8xd5 Bc1f4) -0.21/14
17} 12. a3 {(a2a3 Ne4xc3 b2xc3 a5a4 Qb3b2 Nb4c6 Bc1f4 Be7d6 Bf4g5 Bd6e7
Bg5xe7 Nc6xe7 Rf1e1 f7f6 c4xd5 Ne7xd5 Be2c4 c7c6 Re1xe8+ Qd8xe8 Bc4xd5+
c6xd5 Ra1e1) +0.48/16 12} Nxc3 {(Ne4xc3 b2xc3 a5a4 Qb3b2 Nb4c6 c4xd5 Qd8xd5
Bc1f4 Be7d6 Bf4xd6 Qd5xd6 Be2d3 h7h6 Ra1e1 Bc8e6 Re1e3 Be6d5 Rf1e1 Re8xe3)
-0.17/15 10} 13. bxc3 {(b2xc3 a5a4 Qb3b2 Nb4c6 Bc1f4 Be7d6 Bf4g5 Bd6e7
Bg5xe7 Nc6xe7 Ra1e1 c7c6 c4xd5 Ne7xd5 Be2d3 Re8e7 Re1xe7 Qd8xe7 Nf3e5
Bc8e6) +0.65/17 8} a4 {(a5a4 Qb3b2 Nb4c6 c4xd5 Qd8xd5 Bc1f4 Be7d6 Bf4xd6
Qd5xd6 Be2d3 h7h6 Ra1e1 Bc8e6 Re1e3 Be6d5 Rf1e1 Re8xe3) -0.17/16 10} 14.
Qb1 {(Qb3b1 Nb4c6 Rf1e1 g7g6 Bc1f4 Be7d6 Bf4g5 Bd6e7 Be2d3 Be7xg5 Re1xe8+
Qd8xe8 Nf3xg5 Qe8d7 Qb1c2 f7f6 c4xd5 Qd7xd5 Ng5e4 Kg8g7) +0.58/16 12} Nc6
{(Nb4c6 c4xd5 Qd8xd5 Be2d3 h7h6 Rf1e1 Nc6a5 Bc1f4 c7c6 Nf3e5 Bc8e6 Qb1b2
Na5b3 Bd3c4 Qd5a5) -0.25/15 16} 15. Re1 {(Rf1e1 g7g6 Bc1f4 Be7d6 Bf4g5
Bd6e7 c4xd5 Be7xg5 d5xc6 b7xc6 Nf3xg5 Qd8xg5 Be2f3 Bc8d7 Qb1c2 Qg5f4 Ra1b1
Bd7f5) +0.60/15 12} Na5 {(Nc6a5 c4xd5 Na5b3 Ra1a2 Nb3xc1 Qb1xc1 Qd8xd5 c3c4
Qd5d8 Be2d1 Bc8g4 h2h3 Bg4xf3 Bd1xf3 Qd8xd4 Ra2e2 Qd4d7 Re1d1) 0.00/14 7}
16. cxd5 {(c4xd5 Na5b3 Be2b5 Bc8d7 Bb5d3 Nb3xa1 Bd3xh7+ Kg8h8 Nf3e5 Re8f8
Ne5xd7 Qd8xd7 Bh7f5 Qd7xd5 Re1xe7 Rf8e8 Bc1g5 Re8xe7 Bg5xe7 Na1b3 Bf5h7)
+0.41/15 10} Nb3 {(Na5b3 Ra1a2 Nb3xc1 Qb1xc1 Qd8xd5 c3c4 Qd5d8 Be2d1 Bc8g4
h2h3 Bg4xf3 Bd1xf3 Qd8xd4 Ra2e2 Qd4d7 Bf3xb7 Ra8b8 c4c5 h7h6) 0.00/15 5}
17. Bb5 {(Be2b5 Bc8d7 Bb5d3 Be7f6 Ra1a2 Re8xe1+ Nf3xe1 Nb3xc1 Qb1xc1 c7c6
Qc1b1 g7g6 d5xc6 b7xc6 Ra2b2 Bd7e6 Ne1c2 Qd8a5 Nc2b4 Ra8e8) +0.60/16 8} Bd7
{(Bc8d7 Bb5d3 Nb3xa1) +0.15/15 5} 18. Bd3 {(Bb5d3 Nb3xa1 Bd3xh7+ Kg8f8
Qb1xa1 Bd7b5 Qa1a2 Be7f6 Bh7e4 c7c6 c3c4 c6xd5 c4xd5 Ra8c8 Qa2b1 Qd8b6
Bc1e3 Qb6a5 Be3d2 Qa5b6) +0.76/15 7} Nxa1 {(Nb3xa1 Bd3xh7+ Kg8h8 Nf3e5
Re8f8 Ne5xd7 Qd8xd7 Bh7f5 Qd7d6 Qb1d3 g7g6 Re1e6 f7xe6 Qd3h3+ Kh8g8 Bf5xg6
Rf8f7 Bg6xf7+ Kg8xf7 Qh3h5+ Kf7g8 Qh5g6+ Kg8h8 Qg6h6+ Kh8g8 Qh6g6+ Kg8h8
Qg6h6+ Kh8g8 Qh6g6+ Kg8h8) 0.00/15 19} 19. Bxh7+ {(Bd3xh7+ Kg8f8 Qb1xa1
Bd7b5 Qa1a2 Be7f6 Bh7e4 c7c6 c3c4 c6xd5 c4xd5 Ra8c8 Qa2b1 Qd8b6 Bc1e3 Qb6a5
Be3d2 Qa5b6 Bd2b4+ Bf6e7) +0.76/15 10} Kh8 {(Kg8h8) 0.00/14 0} 20. Ne5
{(Nf3e5 Re8f8 Ne5xd7 Qd8xd7 Bh7f5 Qd7d8 Qb1xa1 Qd8xd5 Bf5e4 Qd5b3 Be4xb7
Qb3xb7 Re1xe7 Rf8e8 Bc1g5 Kh8g8 h2h4 Re8xe7 Bg5xe7 Ra8e8) +0.41/16 9} Rf8
{(Re8f8) 0.00/14 0} 21. Nxd7 {(Ne5xd7 Qd8xd7 Bh7f5 Qd7d8 Qb1xa1 Qd8xd5
Bf5e4 Qd5b3 Bc1f4 Rf8e8 Bf4e5 Be7d6 Re1b1 Qb3xa3 Qa1xa3 Bd6xa3 Rb1xb7 Ba3d6
Be4c6 Re8xe5 d4xe5) +0.39/16 14} Qxd7 {(Qd8xd7) 0.00/13 0} 22. Bf5 {(Bh7f5
Qd7d8 Qb1xa1 Qd8xd5 Qa1b1 Ra8e8 Re1e5 Be7h4 Bc1f4 Qd5b3 Bf5c2 Qb3xb1+
Bc2xb1 Re8xe5 Bf4xe5 Rf8e8 Bb1d3 Bh4e7 Bd3b5 c7c6) +0.19/16 7} Qd6 {(Qd7d6
Qb1d3 g7g6 Re1e6 f7xe6 Qd3h3+ Kh8g8 Bf5xg6 Rf8f7 Bg6xf7+ Kg8xf7 Qh3h5+
Kf7g8 Qh5g6+ Kg8h8 Qg6h6+ Kh8g8 Qh6g6+ Kg8h8 Qg6h6+ Kh8g8 Qh6g6+ Kg8h8
Qg6h6+ Kh8g8 Qh6g6+ Kg8h8 Qg6h6+ Kh8g8 Qh6g6+ Kg8h8) 0.00/16 7} 23. Re3
{(Re1e3 Rf8e8 Re3h3+ Kh8g8 Bf5h7+ Kg8f8 Bh7e4 Be7f6 Rh3h8+ Kf8e7 Rh8xe8+
Ra8xe8 Qb1xa1 Ke7d8 f2f3 Kd8c8 c3c4 Kc8b8 Bc1d2 Bf6h4 c4c5) +0.42/15 6}
Rfe8 {(Rf8e8) +0.12/14 7} 24. Rh3+ {(Re3h3+ Kh8g8 Bf5h7+ Kg8f8 Bh7e4 Be7f6
Rh3h8+ Kf8e7 Rh8xe8+ Ra8xe8 Qb1xa1 Ke7f8 f2f3 Qd6b6 Bc1f4 Bf6e5 Bf4d2 Be5f6
Be4f5 Re8e2 Qa1d1) +0.42/15 11} Kg8 {(Kh8g8) +0.12/12 0} 25. Bh7+ {(Bf5h7+
Kg8f8 Qb1xa1 Be7f6 Bc1d2 Qd6xd5 Bh7d3 Kf8g8 Qa1b1 Qd5b3 Bd3h7+ Kg8f8 Qb1c1
Bf6e7 Bh7c2 Be7xa3 Qc1d1 Qb3c4 Rh3h8+ Kf8e7 Bd2g5+ f7f6 Qd1e1+ Ke7f7)
+0.04/15 8} Kf8 {(Kg8f8) +0.12/12 0} 26. Be4 {(Bh7e4 Be7f6 Rh3h8+ Kf8e7
Rh8xe8+ Ra8xe8 Qb1xa1 Ke7f8 f2f3 Bf6h4 c3c4 Kf8g8 Bc1d2 Qd6f6 Bd2e3 Bh4g5
Qa1c3 Bg5xe3+ Qc3xe3 Qf6e7 h2h3 Qe7d6) +0.17/16 10} Bf6 {(Be7f6 Rh3h8+
Kf8e7 Rh8xe8+ Ra8xe8 Qb1xa1 Ke7f8 f2f3 Bf6h4 Bc1d2 Bh4e7 Bd2c1 Qd6b6 Kg1f2
Qb6b3 Qa1b2 g7g6 Qb2d2 Kf8g8 Be4c2 Qb3xd5 Bc2xa4 b7b5 Ba4c2 Qd5h5 h2h3)
+0.53/14 10} 27. Rh8+ {(Rh3h8+ Kf8e7 Rh8xe8+ Ra8xe8 Qb1xa1 Ke7f8 f2f3 Bf6h4
c3c4 Kf8g8 Bc1d2 Qd6f6 Kg1h1 Bh4f2 Bd2c3 Qf6h6 Bc3b4 Qh6e3 d5d6 c7xd6
Bb4xd6) +0.11/16 10} Ke7 {(Kf8e7) +0.53/13 0} 28. Rxe8+ {(Rh8xe8+ Ra8xe8
Qb1xa1 Ke7f8 f2f3 Bf6h4 c3c4 Kf8g8 Bc1d2 Qd6f6 Bd2e3 Qf6e7 g2g4 Bh4g5 Be3f2
Bg5h4 Bf2xh4 Qe7xh4 Qa1c3 g7g5) +0.03/17 5} Rxe8 {(Ra8xe8 Qb1xa1 Ke7f8 f2f3
Bf6h4 Bc1d2 Bh4e7 Bd2c1 Qd6b6 Kg1f2 Qb6b3 Qa1b2 g7g6 g2g3 Kf8g7 h2h4 Be7d6
Qb2d2 Re8h8 Be4c2 Qb3xd5 Bc2xa4 Qd5e6 Qd2d1) +0.63/15 5} 29. Qxa1 {(Qb1xa1
Ke7f8 f2f3 Bf6h4 c3c4 Kf8g8 Bc1d2 Qd6f6 Bd2e3 Qf6e7 g2g4 Bh4g5 Be3f2 Bg5h4
Bf2e3) 0.00/17 10} Kf8 {(Ke7f8) +0.63/14 0} 30. f3 {(f2f3 Qd6a6 Qa1b2 Bf6h4
g2g4 Re8xe4 f3xe4 Qa6d3 Qb2b4+ Kf8g8 Qb4xa4 Qd3e2 Qa4e8+ Kg8h7 Qe8xf7
Qe2xg4+ Kg1f1 Qg4d1+ Kf1g2 Qd1g4+ Kg2f1) 0.00/18 10} Bh4 {(Bf6h4 c3c4 f7f5
Bc1d2) +0.63/16 12} 31. c4 {(c3c4 Kf8g8 Bc1d2 Qd6f6 g2g3 Bh4g5 Bd2xg5
Qf6xg5 Qa1c3 Qg5h6 h2h4 Qh6d6 Kg1g2 Qd6b6 Be4c2 Re8e2+ Kg2h3 Qb6a6 Bc2h7+
Kg8f8) +0.09/17 8} f5 {(f7f5 Bc1d2) +3.83/15 44} 32. Bd2 {(Bc1d2 Bh4e7
Be4xf5 Qd6xa3 Qa1e1 Qa3d6 Bf5e6 a4a3 c4c5 Qd6a6 Bd2c3 Be7f6 c5c6 b7xc6
d5xc6 Qa6xc6 Bc3b4+ Bf6e7 Bb4d2 Qc6c2) +0.15/15 8} fxe4 {(f5xe4) +4.43/14
32} 33. Bb4 {(Bd2b4 e4e3 g2g3 e3e2 Bb4xd6+ c7xd6 Kg1f2 e2e1Q+ Qa1xe1 Re8xe1
Kf2xe1 Bh4f6 Ke1d2 Bf6xd4 Kd2c2 Kf8f7 f3f4 Bd4g1 h2h4 Bg1f2 g3g4 Bf2xh4
f4f5 g7g6 Kc2d3) -2.42/15 9} Qxb4 {(Qd6xb4) +6.72/11 4} 34. axb4 {(a3xb4
e4e3 g2g3 e3e2 Qa1e1 Bh4f6 Kg1g2 Bf6xd4 b4b5 a4a3 Qe1a5 e2e1Q Qa5xa3+ Kf8g8
Qa3d3 Qe1g1+ Kg2h3 Re8e5 f3f4 Re5h5+ Kh3g4 Rh5xh2 Kg4f5 Bd4e3 Kf5e4 Be3f2
d5d6 Qg1h1+ Qd3f3) -8.37/17 9} e3 {(e4e3) +5.10/10 0} 35. g3 {(g2g3 e3e2
Qa1e1 Bh4f6 Kg1g2 Bf6xd4 c4c5 Bd4c3 Qe1xc3 e2e1Q Qc3d4 Re8e2+ Kg2h3 Qe1d2
Qd4g1 Re2e1 Qg1g2 Qd2xg2+ Kh3xg2 a4a3 d5d6 c7xd6 Kg2f2 Re1e8 h2h4)
-10.23/16 46} e2 {(e3e2) +5.11/13 0} 36. Kf2 {(Kg1f2 e2e1Q+ Qa1xe1 Re8xe1
Kf2xe1 a4a3 g3xh4 a3a2 d5d6 c7xd6 Ke1e2 a2a1Q Ke2e3 Qa1e1+ Ke3d3 Qe1f1+
Kd3e3 Qf1xc4 h4h5 Qc4xb4 Ke3e4 b7b5 f3f4 Kf8f7 Ke4e3 Qb4b3+ Ke3d2)
-10.92/12 25} Bxg3+ {(Bh4xg3+) +8.84/9 6} 37. hxg3 {(h2xg3 e2e1Q+ Qa1xe1
Re8xe1 Kf2xe1 a4a3 Ke1e2 a3a2 Ke2d3 a2a1Q c4c5 Qa1b1+ Kd3e3 Qb1g1+ Ke3e4
Qg1xg3 Ke4e3 Qg3e1+ Ke3f4 Qe1xb4 Kf4e3 Qb4e1+ Ke3d3 Qe1f2 Kd3e4 Kf8e7 c5c6
b7b5 f3f4) -10.64/14 6} e1=Q+ {(e2e1Q+) +8.87/10 6} 38. Qxe1 {(Qa1xe1
Re8xe1 Kf2xe1 a4a3 Ke1e2 a3a2 Ke2d3 a2a1Q c4c5 Qa1b1+ Kd3e3 Qb1g1+ Ke3e4
Qg1xg3 Ke4e3 Qg3e1+ Ke3f4 Qe1xb4 Kf4e3 Qb4b3+ Ke3e4 Qb3b1+ Ke4e5 g7g6
Ke5f4) -10.61/12 6} Rxe1 {(Re8xe1) +9.22/11 8} 39. Kxe1 {(Kf2xe1 a4a3 Ke1e2
a3a2 Ke2d3 a2a1Q c4c5 Qa1b1+ Kd3c3 Qb1e1+ Kc3c4 Qe1e2+ Kc4c3 Qe2xf3+ Kc3c4
Qf3xg3 b4b5 g7g5 d5d6 c7xd6 c5c6 b7xc6 b5xc6 Qg3g2 d4d5) -10.60/12 6 White
resigns} 0-1
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Dann Corbit
Posts: 12542
Joined: Wed Mar 08, 2006 8:57 pm
Location: Redmond, WA USA

Re: Speaking of passed pawns, Rybka has a Morphy moment

Post by Dann Corbit »

The Morphy moment is this move:
[d]4rk2/1pp2pp1/3q4/3P4/p1PPB2b/P4P2/6PP/Q1B3K1 b - - bm f5!!;
Your engine should see a score of at least + 2 full pawns. Some engines have a score of +7 pawns in less than a minute, and some engines simply can't find it.
Moves Qa6, Qb6 lead to a slight advantage and get a grade of C-
Move Kg8 is drawish and gets a grade of D-
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Jouni
Posts: 3293
Joined: Wed Mar 08, 2006 8:15 pm

Re: Speaking of passed pawns, Rybka has a Morphy moment

Post by Jouni »

Analysis by Fritz 10 :) :

1...f5 2.Bd2
-+ (-1.51) Depth: 9/24 00:00:00 92kN
1...f5 2.Bd2 fxe4
-+ (-1.51) Depth: 9/28 00:00:00 170kN
1...f5
-+ (-1.79) Depth: 10/28 00:00:00 293kN
1...f5
-+ (-2.07) Depth: 10/28 00:00:00 353kN
1...f5 2.Bd2 fxe4 3.fxe4 Qf6
-+ (-2.07) Depth: 11/24 00:00:00 527kN
1...f5
-+ (-2.35) Depth: 12/27 00:00:01 920kN
1...f5
-+ (-2.63) Depth: 12/28 00:00:01 1289kN
1...f5
-+ (-3.20) Depth: 12/29 00:00:02 1920kN
1...f5 2.Bd2 fxe4 3.fxe4 Qf6 4.Bb4+ Kg8 5.e5 Qf2+ 6.Kh1 Qe2 7.Qg1
-+ (-3.44) Depth: 13/31 00:00:05 4331kN

Jouni
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yanquis1972
Posts: 1766
Joined: Wed Jun 03, 2009 12:14 am

Re: Speaking of passed pawns, Rybka has a Morphy moment

Post by yanquis1972 »

it seems like a very simple tactic so i must be underthinking it -- how is it possible for engines to have trouble with it? it seems to be the first move they consider and then they move off, so there must be a secondary tactical shot i'm not seeing.

ah - found it 1..f5 2.Bd2 3.fxe4 3.Bb4 pinning queen to king.

haha, looking at the PGN now, yes that is quite a gorgeous finish.
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Dann Corbit
Posts: 12542
Joined: Wed Mar 08, 2006 8:57 pm
Location: Redmond, WA USA

Re: Speaking of passed pawns, Rybka has a Morphy moment

Post by Dann Corbit »

yanquis1972 wrote:it seems like a very simple tactic so i must be underthinking it -- how is it possible for engines to have trouble with it? it seems to be the first move they consider and then they move off, so there must be a secondary tactical shot i'm not seeing.

ah - found it 1..f5 2.Bd2 3.fxe4 3.Bb4 pinning queen to king.

haha, looking at the PGN now, yes that is quite a gorgeous finish.
When I was watching the game live, I saw Rybka's eval spike and it seemed like fool's gold to me (because I did not understand the position). But the eval just climbed and climbed and eons later Toga realized he was meat on a hook.
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Terry McCracken
Posts: 16465
Joined: Wed Aug 01, 2007 4:16 am
Location: Canada

Re: Speaking of passed pawns, Rybka has a Morphy moment

Post by Terry McCracken »

Dann Corbit wrote:
yanquis1972 wrote:it seems like a very simple tactic so i must be underthinking it -- how is it possible for engines to have trouble with it? it seems to be the first move they consider and then they move off, so there must be a secondary tactical shot i'm not seeing.

ah - found it 1..f5 2.Bd2 3.fxe4 3.Bb4 pinning queen to king.

haha, looking at the PGN now, yes that is quite a gorgeous finish.
When I was watching the game live, I saw Rybka's eval spike and it seemed like fool's gold to me (because I did not understand the position). But the eval just climbed and climbed and eons later Toga realized he was meat on a hook.
Yes a deadly move and attack.

1... f5 2. Bd2 fxe4 3. Bb4 Qxb4 4. axb4 e3 −+

1... f5 2. Bd3 Re1+ 3. Bf1 Qe7 4. Qc3 Qe2 −+
Terry McCracken
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