[Event "Biel GM 42nd"]
[Site "Biel"]
[Date "2009.07.23"]
[Round "4"]
[White "Caruana, Fabiano"]
[Black "Morozevich, Alexander"]
[Result "1-0"]
[ECO "D87"]
[WhiteElo "2670"]
[BlackElo "2751"]
[Annotator "Krasenkow"]
[PlyCount "117"]
[EventDate "2009.07.19"]
[EventType "tourn"]
[EventRounds "10"]
[EventCountry "SUI"]
[EventCategory "19"]
[Source "ChessBase"]
[SourceDate "2009.09.16"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Bc4 c5 8.
Ne2 O-O 9. O-O Nc6 10. Be3 Qc7 11. Rc1 Rd8 12. Bf4 Be5 {A rare but interesting
continuation. Al least Black avoids the awkward} (12... Qd7) 13. Bg3 {The most
principled reply. Other options seen in practice:} (13. Bxe5 Nxe5 14. Bb3 (14.
Qb3 Nxc4 15. Qxc4 Bd7 16. Rfd1 Rac8 17. d5 Qa5 18. e5 b5 19. Qh4 Qxa2 20. Nf4
Qc4 21. g3 Re8 22. Re1 Bf5 23. Qg5 Kg7 24. Nh5+ Kh8 25. Nf4 Kg7 {1/2 Utnasunov,
A (2175)-Rusev,K (2202)/Artek 1999/EXT 2000}) (14. Bd5 Ng4 15. Ng3 Nf6 (15...
Qf4 $5) 16. Bc4 Qf4 17. Re1 b6 18. f3 cxd4 19. cxd4 Bb7 20. Qb3 e6 21. Ne2 Qg5
22. Bxe6 fxe6 23. Qxe6+ Kh8 24. f4 Re8 25. Qxe8+ Rxe8 26. fxg5 Nxe4 27. Ng3 {
1-0 Alonso Gonzalez,A-Lana Prieto,J/Asturias 1997/EXT 2001}) (14. Bd3 Bg4 (
14... Ng4 $142 15. Ng3 Qf4) 15. f3 Be6 16. d5 Qa5 17. c4 Bd7 18. f4 $2 (18. Nc3
$13) 18... Ba4 19. Bc2 Nxc4 20. Bxa4 Nb2 21. Qb3 Nxa4 22. Qxb7 Rab8 23. Qxe7
Re8 $36 {0-1 Lopez Quevedo,A (2148)-Larino Nieto,D (2435)/Linares 2007/EXT
2008 (71)}) 14... Ng4 15. Ng3 Qf4 (15... c4 $143 {too passive!} 16. Bc2 e5 17.
h3 Nf6 18. Qf3 Nd7 (18... Kg7 19. Qe3 b5 20. f4 exd4 21. cxd4 Qb6 22. Rcd1 a5
23. f5 $40 {1-0 Jaracz,P (2495)-Owczarzak,J (2389)/Ustron 2007/EXT 2009 (32)})
19. Qe3 b5 20. f4 f6 21. Rf2 Bb7 22. Rcf1 (22. dxe5 $142 fxe5 23. f5 $40) 22...
exd4 23. cxd4 Qb6 24. Ne2 b4 $14 {1/2 Pekarek,A (2475)-Sygulski,A (2360)/
Germany 1991/TD (44)}) 16. Qf3 Qxf3 17. gxf3 Nf6 18. Rfd1 Kf8 19. Ne2 b6 $11
20. e5 $6 Nh5 21. dxc5 $6 Ba6 22. Ng3 Nf4 23. cxb6 axb6 24. Rd4 Rxd4 25. cxd4
Bb7 26. Kf1 Bxf3 $15 {_|_0-1 Cheparinov,I (2696)-Ivanchuk,V (2786)/Cap d'Agde
2008/EXT 2009 (64)}) (13. Qd2 Bxf4 14. Nxf4 cxd4 15. cxd4 Qa5 16. Qxa5 Nxa5 17.
d5 Bd7 18. Be2 Rac8 19. h4 Kf8 20. Rfd1 Rxc1 21. Rxc1 Rc8 22. Rxc8+ Bxc8 23. g4
e6 24. d6 e5 25. Nd5 Be6 26. Nf6 b6 27. Ba6 Bxa2 28. Nd7+ Ke8 29. Nf6+ Kf8 {1/
2 Mayer,E (2318)-Petkov,S (2377)/IECC 2006/Telechess CBM 123}) 13... Bxg3 (
13... cxd4 $6 14. cxd4 Qb6 15. Rb1 Qc7 16. Qb3 Nxd4 17. Nxd4 Rxd4 18. Bxf7+ Kh8
19. Rbc1 Qd6 20. Qb5 $1 Bxg3 21. Qe8+ Kg7 22. Qg8+ Kh6 23. Qf8+ Kg5 24. fxg3
$18 {1-0 Albrecht,R (2285)-Trenner,R (2285)/Germany 1994/EXT 1999 (27)}) 14.
fxg3 $1 {Absolutely right! White recaptures with the f-pawn to open up the
f-file for his rooks and obtain attacking chances.} (14. Nxg3 e6 $1 $11 (14...
cxd4 $143 15. cxd4 Qb6 16. Qf3 Rf8 17. d5 $14 {1-0 Vuelban,V (2411)-Brih,S 
(2268)/Ancona 2009/CBM 128 Extra (39)})) 14... Rf8 $5 $146 {Passive but safe.
Black has some other, more active, double-edged options, which, however,
weaken the f6 square:} (14... Ne5 15. Bd5 e6 16. dxe5 (16. Bb3 b6 17. Qd2 c4 $6
(17... Ba6 $1) 18. Bc2 Qe7 19. Nf4 Nd7 20. Qe3 Qa3 21. e5 $16 {1-0 Kulczycki,
M-Sy,R/IECC 2000/81 telechess (24)}) 16... exd5 17. exd5 Qxe5 18. Nf4 b5 19. c4
bxc4 20. Re1 Qd6 21. Rxc4 Ba6 22. Rc1 Rac8 23. h3 Bb7 24. Qb3 Qb6 25. Qc3 Bxd5
26. Re8+ Rxe8 27. Nxd5 Qc6 28. Nf6+ Kf8 $11 {1/2 Mayer,E (2343)-Sakic,R (2285)/
IECC 2006/Telechess CBM 123 (36)}) (14... e6 $5 15. Qd2 Rb8 16. Bb5 cxd4 17.
cxd4 Qe5 18. Bxc6 bxc6 19. Qe3 Qc7 $13 20. Nf4 $6 Qd6 21. Nh5 $6 Qxd4 22. Nf6+
Kg7 23. Qxd4 Rxd4 24. e5 Ba6 $17 {0-1 Gozzoli,Y (2503)-Krasenkow,M (2620)/
Nancy 2009/CBM 129 (48)}) 15. h3 $6 {White prevents ...Bc8-g4 but Black now
establishes a strong blockade.} (15. Qd3 Bg4 (15... Na5 16. Nf4 $5) 16. Nf4
cxd4 17. cxd4 Qd6 $5 {etc. needs analysis.}) 15... Na5 16. Bd3 e5 $1 17. Qd2
Qe7 18. g4 Bd7 19. d5 {White fails to find anything better but now he has no
more attacking chances, and Black seizes the initiative.} c4 20. Bc2 f6 21. Ng3
b6 22. Bd1 Nb7 23. Be2 Nd6 24. Rf2 Rac8 25. Rcf1 Kg7 26. Qe3 h6 27. Rb1 {Back
to defence.} Rc5 28. Bd1 Ra5 29. Qd2 Be8 30. Be2 Qc7 31. Rbf1 Rf7 32. h4 {
[%cal Yg4g5]} Qe7 33. Qc2 b5 34. Qb1 Qd8 35. Bd1 Qb6 36. Kh2 Qc5 37. Qc1 Ra6
38. Qd2 Rb6 39. Bc2 (39. g5 $5 fxg5 40. hxg5 hxg5 41. Rxf7+ Nxf7 42. Bg4 $132)
39... Rbb7 40. Qc1 a5 41. a3 Rb8 42. Bd1 Bd7 43. Be2 Rh8 {The "don't hurry"
approach. It was quite time to play} (43... b4 {as} 44. axb4 axb4 45. cxb4 Qxb4
46. g5 {could be met by} hxg5 47. hxg5 f5 $1 $17) 44. Qa1 {A "provocation".
White could have simply waited (but then Black would finally come back to the .
..b5-b4 idea).} (44. Bd1) 44... h5 $5 {Black tries to counterattack on the
same side where White has an attacking setup. Such a double-edged approach
works when the opponent's pieces are not mobilized enough. Does the fact that
White's queen is just a tempo off the main battlefield mean "insufficient
mobilization"? The analysis shows that it apparently does but Black fails to
prove it over the board!} (44... Rb8 {[%cal Yb5b4] was quite in the spirit of
the position.}) 45. gxh5 f5 $1 46. exf5 gxf5 47. Qb1 $1 Qe3 $4 (47... Rhf8 $1 {
was correct, e.g.} 48. Bg4 $1 e4 49. Qc1 $5 (49. Bh3 Qxa3 50. Qe1 Qc5 $17 {
[%cal Yb5b4]}) 49... e3 $1 50. Rf4 fxg4 (50... Qxd5 $2 51. Qxe3 fxg4 52. Rd4
Qe6 53. Qxe6 Bxe6 54. Re1) 51. Qc2 Nf5 $1 {(the only way to avoid a perpetual)}
52. Nxf5+ Kh8 $1 53. Qe4 Re8 ({or} 53... e2 $5 54. Qxe2 Rxf5 55. Rxf5 Qd6+ $17)
54. Qd4+ (54. Nh6 $6 Rg7 $1 55. Qd4 Qxd4 56. cxd4 g3+ 57. Kg1 e2 58. Re1 c3 59.
Nf7+ Rxf7 60. Rxf7 c2 $19) 54... Qxd4 55. Nxd4 Rxf4 56. Rxf4 e2 57. Nxe2 Rxe2
58. Rf7 Be8 59. Rb7 Re3 $1 60. d6 Bc6 $1 61. d7 (61. Rc7 Be4 $19 {[%csl Rh2]})
61... Bxd7 62. Rxd7 Rxc3 63. Rb7 Rb3 $19 {_|_}) {After the text move
everything turns around.} 48. Bg4 $1 Qd3 {Otherwise Black loses his f5 pawn.}
49. Qe1 $1 Re8 (49... Qxd5 50. Bxf5 $18 {->}) 50. Rf3 {Enough to gain the f5
pawn and obtain a winning attack but} (50. Rd2 $1 Qxc3 51. Rf3 $18 {was even
simpler.}) 50... Qxd5 51. Bxf5 e4 52. Bxe4 $1 Qe5 53. h6+ Kf8 54. Rxf7+ Nxf7
55. Qf2 Re7 56. Bg6 Be8 57. Qf6 Qxf6 58. Rxf6 Kg8 59. Nf5 (59. Nf5 Rd7 60. h7+
Kh8 61. Nh6 $18) 1-0

