K.Sakaev - M.Ulibin, Dubai, 2000

Konstantin Sakaev,
grandmaster

Sakaev, Konstantin (2629) - Ulibin, Mikhail (2579)
Dubai, 2000
[C13]

1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Be7 5. e5 Nfd7

Diagram 1

6. h4 c5 7. Bxe7 Kxe7 8. dxc5 Nxe5 9. Qe2! N

9. Qd2

9...Nbc6

9...f6 10. f4 Nec6

Diagram 2

A) 11. f5 Nd4 12. Qf2

A1) 12...Nxf5

A11) 13. g4 d4! 14. O-O-O Ne3! (14...Qa5? 15. gxf5 dxc3 16. Qg3 Rg8 [16...Kf7 17. Bc4 White has a decisive advantage ] 17. Qd6+ Kf7 18. Bc4 ) 15. Rd2 e5 Black has the upper hand

A12) 13. O-O-O! d4 14. Nf3 e5 15. Bc4 Ne3 16. Rhe1! With attack

A2) 12...e5 13. O-O-O (13. g4 b6 With unclear play ) 13...Bxf5 (13...Nbc6 14. g4 White has the upper hand With idea 15. Bg2) 14. Rxd4 exd4 15. Nb5 Be4

B) 11. O-O-O Kf7

B1) 12. Nb5 Rf8 13. Nd6+ Kg8 14. f5 exf5 15. Rxd5 Ne5

Diagram 3

16. Rxe5 fxe5 17. Qxe5 Qf6 (17...Nc6 18. Bc4+ Kh8 19. Qf4 Qa5 20. Nf3 Qxc5 21. Ng5 With attack ) 18. Bc4+ Kh8 19. Qxf6 (19. Qf4 Be6 With unclear play ) 19...gxf6 20. Ne2 Nc6

Diagram 4

21. Nf4 b6 22. Bd5 Bd7 23. cxb6 axb6 White has a little advantage

B2) 12. f5 Re8

Diagram 5

B21) 13. fxe6+ Bxe6 14. Nxd5 Bxd5 15. Qh5+ Kf8 16. Qxd5 (16. Rxd5 Re1+ 17. Kd2? Qa5+) 16...Qxd5 17. Rxd5 Re1+ 18. Rd1 Rxd1+ 19. Kxd1 Nd7 =

B22) 13. Qh5+ Kg8

B221) 14. fxe6?! Bxe6 15. Nxd5 Bf7! 16. Qf3 Ne5 17. Qb3 Nbc6 Black has a little advantage

B222) 14. Bc4 Qe7 15. Bb3 (15. Bxd5? exd5 16. Nxd5 Qf7 17. Qxf7+ Kxf7 18. Nc7 Bxf5 19. Nxa8 Na6 Black has the upper hand ) 15...Na6 16. fxe6 Nxc5 17. Bxd5 Bxe6 18. Nf3 Qf7 =

B223) 14. Nf3! Ne7 15. Bd3 exf5 16. Rhe1 With attack

9...Nec6 10. O-O-O Kf8 11. f4 Nd7 - 9...Nbc6

10. O-O-O

10. f4?!

Diagram 6

A) 10...Nc4 11. O-O-O Kf8 12. Qf2 White has the upper hand

B) 10...Nd7 11. Nxd5+ Kf8 12. Nc3 Nxc5 13. Nf3 b6 14. Qe3 White has the upper hand

C) 10...Ng6

C1) 11. Qf2? d4 12. O-O-O Qa5 Black has the upper hand

C2) 11. g3 Qa5 (11...d4 12. Ne4 Qa5+ [12...f5 13. Nd2 With initiative ] 13. Qd2 [13. Kf2 f5 14. Ng5 Qxc5 15. Kg2 h6 Black has the upper hand ] 13... Qxd2+ 14. Kxd2 White has a little advantage ) 12. Qb5 =

C3) 11. h5 Nxf4 12. Qf2 e5 13. O-O-O d4 With unclear play

C4) 11. f5 Nd4 12. Qf2 Nxf5 With unclear play

D) 10...d4! 11. O-O-O Qa5 12. fxe5 (12. Ne4 Nd7 White has a little advantage With idea 13. Qc4 f5 14. Ng5 Nxc5 Black has the upper hand ) 12...dxc3 13. Qe3 Qxa2 (13...cxb2+ 14. Kb1) 14. Qxc3 Qa1+ 15. Kd2 Qa4 Black has a little advantage

10...Kf8

10...Qa5

A) 11. f4 d4! Black has a little advantage - 10. f4 d4 11. O-O-O Qa5

B) 11. Rh3 d4 (11...Nc4?! 12. Qg4 White has a little advantage ) 12. Ne4 (12. Nb5 d3 Black has the upper hand )

Diagram 7

B1) 12...d3? 13. cxd3 Nd4 (13...Qxa2 14. d4 Qa1+ [14...Rd8 15. Ra3 White has a decisive advantage ] 15. Kc2 Qa4+ [15...Nb4+ 16. Kb3 Qa2+ 17. Kxb4 ] 16. Kb1 Nxd4 [16...Nb4 17. Ra3 ] 17. Qd2 Rd8 18. Ra3 Qc6 19. Qg5+ ) 14. Qd2 Qxa2 15. Qg5+ Kd7 16. Qxe5 Qa1+ 17. Kd2 Qxb2+ 18. Ke3

B2) 12...Qxa2 13. Ra3 Qd5 14. f4

Diagram 8

B21) 14...Nd7 15. c4 (15. Rg3!? With compensation ; 15. Nf3 Nxc5 16. Nxc5 Qxc5 Black has a little advantage )

B211) 15...d3 16. Raxd3 (16. Rdxd3 Qxc4+ 17. Kb1 [17. Rac3 Qa2 18. Ra3 =] 17...b5 18. Nf3 With attack [18. cxb6 Nxb6 19. Rac3 Qa4]) 16...Qxc4+ 17. Kb1 Qb4 18. Nf3 Nxc5 19. Nxc5 Qxc5 20. Ne5

B212) 15...Qf5 16. Nh3 Nxc5 17. Ng3 Qg6 (17...Qf6 18. Nh5 d3 [18...Qxh4? 19. g3 d3 20. Raxd3 Nxd3+ 21. Rxd3 White has a decisive advantage ; 18... Qg6 19. g4 Qe4 20. Qf2 With attack ] 19. Qe3 Qd4 20. Qg3 With compensation ) 18. Ng5 (18. f5 Qh6+; 18. h5 Qf6)

B22) 14...Nc4 15. Rg3! With compensation (15. Ra4 b5 16. cxb6 Nxb6 17. Ra3 Rd8 18. Nf3 Bb7 Black has the upper hand )

C) 11. Kb1 Kf8

Diagram 9

C1) 12. Rh3 Qxc5 (12...Nc4 13. Rg3! [13. b3 Na3+ 14. Kb2 Qxc5 With unclear play ] 13...Qxc5 14. Qg4 g6 15. h5 [15. Bxc4 Qxc4 16. Qxc4 dxc4 17. Rg4 =; 17. Ne4 Ke7 Black has a little advantage ] 15...Qb4 16. Bxc4 Qxc4 17. Qg5 With initiative ) 13. f4 Nc4

C2) 12. f4 Nc4 (12...Nd7 13. Nf3 Nxc5 - 10...Kf8 11. f4 Nd7 12. Nf3 Nc5 13. Kb1 Qa5) 13. Qf3 (13. Qf2 Nxb2! Black has the upper hand ; 13. Rh3 e5!?) 13...Qxc5 14. Bxc4 Qxc4 15. Nge2 With compensation

11. f4 Nd7 12. Nf3 Nxc5

Diagram 10

13. Kb1!?

13. f5 (13. g4 b5! 14. Qxb5 Qb6 =) 13...exf5! 14. Rxd5 Qb6 15. Qc4 Nd7 (15...Ne4 16. Nxe4 fxe4 17. Qxe4 Be6 18. Rb5 Qc7 [18...Qf2 19. Bd3 With initiative ] 19. Ng5 Re8 20. Bd3 ) 16. Rxf5 Qe3+ 17. Kb1 Nf6 18. Qc5+ Qxc5 19. Rxc5 White has a little advantage

13...b5

A) 13...b6 14. Qe3 (14. f5!? Ba6 15. Qe3 Bxf1 16. Rhxf1 With attack ) 14...Ba6 15. Bxa6 Nxa6 16. f5

B) 13...Qa5! 14. Qe3 Na4 15. Nxa4 Qxa4 16. Bd3 b6 (16...Nb4 17. a3 Nxd3 18. Rxd3 With initiative )

Diagram 11

B1) 17. h5 h6 (17...Ba6 18. Bxa6 Qxa6 19. h6 With initiative ) 18. f5 exf5 19. Rh4 Qa5 With unclear play

B2) 17. Qe2 Nb4 18. a3 Nxd3 19. cxd3 With compensation

B3) 17. c3 Ba6 18. Bc2 Qc4 19. Rhe1 With compensation (19. Bd3 Qa4 =)

14. Qe3!

14. Qxb5 Qb6 =

14...Qb6

Diagram 12

15. Rxd5!

15. Nxd5? exd5 16. Rxd5 Nd7 Black has the upper hand ; 15. Bxb5? Rb8 With idea 16. b3 Ne4

15...exd5 16. Nxd5 Qd8 17. Qxc5+ Ne7

Diagram 13

18. Nc3! With compensation

18. Qxe7+ Qxe7 19. Nxe7 Kxe7 20. Bxb5 Rd8 (20...Bb7!? 21. Re1+ Kf6!? 22. Ne5 Bxg2!?) 21. Re1+ Kf8 =

18...a6

18...Qb6 19. Qxb6 axb6 20. Bxb5 Bb7 21. Ne5! White has the upper hand ; 18...Bb7 19. Bxb5 Bxf3 20. gxf3 Qb6 21. Qa3

19. Be2 Be6?!

19...Bg4 20. Rd1 Qc8 21. Qb4 f6 22. f5!? (22. Nd5 Ra7 With unclear play ) 22...Bxf5 23. Nd4 With attack ; 19...Bb7! 20. Rd1 Qc8 21. Qb4 Qc7 22. Ne5 Rd8 23. Rxd8+ Qxd8 24. a4 With compensation

20. Rd1 Qc8 21. Qb4 h5

21...Qc7 22. Nd4 White has the upper hand

22. Nd4 Rh6 23. Bf3 Ra7

23...Rb8 24. f5! (24. Nc6 Bxa2+ 25. Kxa2 Rxc6 26. Bxc6 Qxc6 =) 24...Bxf5 25. Nd5 White has a decisive advantage

Diagram 14

24. f5! Bc4 25. Nc6 Rxc6 26. Bxc6 Kg8 27. Be4 Nxf5

Diagram 15

28. Qa5! Rd7 29. Rxd7 Qxd7 30. b3 Bf1 31. Qxa6 g6 32. Nd5

Diagram 16

32...Qd6

32...Qe6 33. Qxe6 fxe6 34. Bxf5 gxf5 35. Ne3 Be2 36. Kc1! f4 (36...b4 37. Kd2 Bb5 38. g3 Kf7 39. c3 bxc3+ 40. Kxc3 White has a decisive advantage ) 37. Kd2 Bg4 38. Nxg4 hxg4 39. a4

33. Qxd6? Time