Sergey Ivanov

Sergey Ivanov,
grandmaster

Korchnoi, Viktor (2675) - Spassky, Boris (2550)
St.Petersburg, 1999, m/8 [A59]

1. d4 Nf6 2. c4 c5 3. d5 b5 4. cxb5 a6 5. bxa6 g6

Diagram 1

6. Nc3 Bxa6 7. e4 Bxf1 8. Kxf1 d6 9. Nf3 Bg7 10. g3 O-O

Diagram 2

11. Kg2 Nbd7 12. h3 Ra6 13. Re1 Qa8 14. Bg5!?

14. Bf4 ; 14. Re2 ; 14. Qc2

Diagram 3

14...h6

14...e6 15. Qd2! exd5 16. exd5 Rb8 17. Rad1 Qb7 18. b3 White has a little advantage , P.Ricardi - S.Giardelli, Buenos Aires, 1995.

15. Bd2

15. Be3!? , A.Beliavsky.

15...e6!?

15...Rb8 16. b3 Ne8 17. Re2! Nc7 18. Rc1!

Diagram 4

18...Ra7 ( 18...Bxc3 19. Rxc3 Rxa2 20. Bxh6 White has the upper hand ; 18...Nb5 19. Nxb5 Rxb5 20. a4 Rb8 21. a5 White has the upper hand , A.Karpov) 19. Qc2 Na6 20. Na4 Nb4 21. Bxb4 Rxb4 22. Qd3 Ra5 23. Rec2 h5 24. Rc4 White has the upper hand , A.Karpov - B.Gelfand, Sanghi Nagar, 1995, m/6.

16. dxe6 fxe6 17. Qc2

17. a4 d5?! ( 17...g5! ) 18. exd5 exd5 19. Nb5 Qb7

Diagram 5

20. Bf4! g5 21. Bd6 Rf7 22. Nd2 d4+ 23. Qf3 White has a little advantage , A.Beliavsky - A.Khalifman, Novosibirsk, 1995

Diagram 6

17...g5

17...Rf7 18. a4 c4?! 19. Be3 d5 (S.Atalik - D.Gurevich, San Francisco, 1998) 20. e5!? Nh7 21. Bd4 Qf8 22. Nh4 White has the upper hand , S.Atalik.

18. a4 g4 N

18...d5!?

Diagram 7

  A) 19. exd5 exd5

    A1) 20. Nb5 Qb7

      A1a) 21. Rad1 Ne4 With attack

      A1b) 21. Nh2 Ne4 ( 21...d4 22. Kg1 With unclear play ) 22. f3 Nxd2 23. Qxd2 Ne5 With initiative

      A1c) 21. Re7 g4 22. hxg4 Nxg4 With initiative

      A1d) 21. Bxg5? hxg5 22. Nxg5 d4+ 23. Kg1

Diagram 8

23...Qd5! 24. Nc7 Qxg5 25. Nxa6 Ne5 26. Rxe5 Qxe5 27. Nxc5 Qd5 Black has the upper hand , C.Minzer - A.Khalifman, Linares, 1997.

    A2) 20. Re7!? d4 21. Nb5 With initiative ( 21. Qg6 Ne8 )

  B) 19. Ra3 Rb6 ( 19...Nb6 20. e5 Nc4? 21. exf6 Nxa3 22. bxa3 Rxf6 White has the upper hand ; 19...Rf7?! 20. exd5 exd5 21. Nb5 Qb7

Diagram 9

22. Bxg5! hxg5 23. Nxg5 Nf8 24. Nxf7 Qxf7 25. Rf3! White has the upper hand , S.Atalik - A.Khalifman, Hastings, 1995/96) 20. Bc1 ( 20. a5!? Ra6 With unclear play , A.Khalifman) 20...Rf7 21. Nd2 Rb4 With unclear play , L.Ljubojevic - V.Topalov, Linares, 1995.

19. hxg4 Nxg4 20. Bf4 ( Weak point d6 ) 20...d5 21. Nb5

Better is 21. exd5 exd5 22. Re7 White has the upper hand

Diagram 10

21...e5! 22. Nc7

22. Bd2!? dxe4 23. Qxe4 Qxe4 24. Rxe4 White has a little advantage

22...Qa7

22...Qb7? 23. Nxa6 exf4 24. Nxc5 White has a decisive advantage

23. Nxa6

23. Nxe5!? Ndxe5 ( 23...Qxc7 24. Nxg4 Rxf4 25. gxf4 Qxf4 26. Qd1 White has the upper hand ) 24. Nxa6 Qxa6 25. exd5 Nd3 26. Re6 With unclear play

23...exf4 24. exd5

24. Qd3 c4 ( 24...fxg3 25. Qxd5+ Rf7 ) 25. Qxd5+ Rf7 26. Re2 Qxa6 ( 26...fxg3!? ) 27. e5 c3 With unclear play

24...Qxa6

Diagram 11

25. Re6

25. Qe2 Qxe2 26. Rxe2 fxg3 27. Kxg3!? ( 27. fxg3 Nb6 28. d6 Nc4 With counterplay ) 27...Nge5 28. Nxe5 Bxe5 29. Kg2 White has a little advantage ; 25. Re7 Qd6 26. Qe4 Nb6 27. Re6 Qd5 28. Re1 Qe4 29. R1e4 Nd5 30. a5 White has a little advantage

25...Qb7

25...Qa8 26. Qg6! ( 26. Re7 Nde5 ) 26...Nge5 27. Nxe5 Qxd5+ 28. Nf3 fxg3 29. Qe4 White has the upper hand

26. Re7!?

26. Qg6 Qxb2 27. Qxg4 Qxa1 28. Re7 fxg3 29. Rxd7 gxf2 30. Kxf2 Qd4+ =

26...fxg3

26...Qxd5?? 27. Rd1 White has a decisive advantage

27. Qg6 Qxb2 28. Ra2

28. Qg4 Qxa1 ( 28...Qxf2+? 29. Kh3 White has a decisive advantage ) 29. Rxd7 - 26. Qg6

Diagram 12

28...Ne3+

28...Qf6!? 29. Qxf6 Ngxf6 30. fxg3 Rd8 Black has a little advantage

29. Kh3 The only move

29. Rxe3? Qxa2 Black has a decisive advantage ; 29. Kxg3? Nf5+ 30. Kg2 Qxa2 Black has a decisive advantage

29...gxf2

29...Qf6 30. Qxf6 Nxf6 31. Rxe3 Nxd5 32. Kxg3 Nxe3 33. fxe3 =; 29...Nxd5!? 30. Qe6+ Kh8 31. Rxb2 ( 31. Qxd5 gxf2 32. Nh2 Qc3+ 33. Kg2 Rg8! Black has the upper hand ) 31...Nf4+ 32. Kxg3 Nxe6

Diagram 13

33. Rb7 Ne5 34. Nxe5 ( 34. Rxe6 Nxf3 35. Ree7 Be5 With unclear play ) 34...Bxe5+ 35. Kg2 Nf4+ 36. Kf1 Nd3 With unclear play

30. Rxb2

Diagram 14

30...f1=Q+

Better is 30...Rxf3+ 31. Kh2 Rh3+!! (M.Taimanov) ( 31...f1=N+? 32. Kg1 Rxg3+ 33. Qxg3 Nxg3 34. Rb7 White has a decisive advantage ) 32. Kxh3 f1=Q+ 33. Kh2 Qf4+ 34. Kg1 Qf1+ =

31. Kh2 Nf5 32. Rg2 Qxg2+

32...Qa1 33. Rxd7 White has a decisive advantage ; 32...Kh8 33. Rxg7 Qxg2+ 34. Kxg2 Nxg7 35. Qd6 White has a decisive advantage

33. Kxg2 Nxe7 34. Qe6+ Rf7 35. Qxd7 White has a decisive advantage

Diagram 15

35...Nf5 36. Qc8+ Bf8 37. Ne5 Rg7+ 38. Kh3 Nd6

Diagram 16

39. Qe6+ Kh7 40. Nd7 Be7 41. Nxc5 1:0

Bullet Next game, annotated by S.Ivanov

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