[Event "Brussels"]
[Site "Brussels"]
[Date "1986.??.??"]
[Round "?"]
[White "Kasparov, Garry"]
[Black "Portisch, Lajos"]
[Result "1-0"]
[ECO "D61"]
[Annotator "Ruslan Scherbakov"]
[PlyCount "127"]
[EventDate "1986.??.??"]
[EventType "game"]
[EventCountry "BEL"]
[Source "ChessPublishing"]

{Garry Kasparov surprised his opponent by leaving his bishop on g5 under
attack after ..h7-h6. Accepting the challenge was the principled choice but
Lajos Portisch preferred the safe approach, which did not help him to solve
the problems. Black soon found himself under pressure and a few defensive
inaccuracies made White's task easier.} 1. d4 d5 2. c4 e6 3. Nc3 Be7 4. Nf3 Nf6
5. Qc2 O-O 6. Bg5 Nbd7 7. e3 h6 8. cxd5 $5 {A very unexpected reply!} exd5 {
Black declines his opponent's gift.} ({The principled} 8... hxg5 $5 {is
certainly more testing. A possible line would be} 9. dxe6 fxe6 10. Nxg5 Nb6 11.
h4 {Black has to be accurate in defence since White's initiative looks strong.
However, the position remains very unclear, for example:} Bb4 (11... c5 {
deserves attention among other continuations:} 12. h5 cxd4 13. h6 (13. O-O-O
Qc7 14. Rxd4 e5 $13) 13... dxc3 14. Rd1 Qe8 (14... Qc7 15. hxg7 $18) 15. hxg7
Kxg7 16. Rh7+ Kg8 17. Rd4 $1 {White's attack looks very strong but it seems
that Black holds on:} cxb2 18. Rdh4 Nbd5 19. f4 $5 b1=Q+ 20. Qxb1 Bb4+ 21. Kf2
Nc3 $1 22. Rh8+ (22. Qc2 $2 Nce4+ $1 23. Nxe4 Nxh7 $1 $19) 22... Kg7 23. R4h7+
Nxh7 24. Rxh7+ (24. Qxh7+ $4 Kf6 $19) 24... Kg8 25. Rh8+ $11) 12. h5 Qe7 13. h6
e5 14. dxe5 ({in case of} 14. Bd3 g6 $1 15. dxe5 Ng4 16. Nf3 Nxe5 17. Nxe5 Qxe5
18. Bxg6 Bf5 {Black is fine}) 14... Qxe5 15. hxg7 Kxg7 16. Rh7+ Nxh7 17. Qxh7+
Kf6 18. Nge4+ Ke6 19. O-O-O Bxc3 20. bxc3 {and White's initiative is
sufficient only for equality:} Rf7 (20... Bd7 $4 21. Bc4+ $1 $18) 21. Qh6+ Ke7
22. Qh4+ Rf6 23. Qh7+ Rf7 24. Qh4+ $11 {with a repeti tion of moves. Yet,
these variations should be checked more thoroughly...}) 9. Bf4 $5 {White's
idea is to get a good version of the Carlsbad.} c5 $5 ({After} 9... c6 10. Bd3
(10. O-O-O $5 {with the idea to begin K-side actions by h3, g4 is also
interesting}) 10... Re8 11. h3 Nf8 12. O-O Ne6 13. Bh2 Bd6 14. Ne5 Bd7 15. Rad1
Rc8 16. Kh1 Qc7 17. f4 {White has got a certain advantage in the game
Vyzmanavin - Lammi, Helsinki1992.}) 10. Be2 ({Here} 10. O-O-O $6 {was less
clear:} Qa5 (10... a6 $5 {/\ ...b7-b5}) 11. g4 Nb6 12. g5 hxg5 13. Nxg5 {
and here in the game Kiselev -Glienke, Berlin 1994 Black should have played}
Bg4 $5 {, moving the bishop to g6 with good counter chances.}) 10... b6 11. O-O
Bb7 12. Rfd1 Rc8 ({Or} 12... a6 13. Ne5 cxd4 14. exd4 Rc8 15. Qf5 {and Black's
life wasn't easy in Kiselev - Schlemermeyer, Berlin 1996.}) 13. dxc5 bxc5 {
A typical position with hanging pawns has been reached. Black is behind to get
active play and it means his pawns are under pressure though they are well
protected.} (13... Nxc5 14. Qf5 {was clearly better for White, Mikenas -
Rastenis, Lithuania corr. 1988.}) 14. a4 $1 Qa5 $6 {Underestimating White's
resources.} (14... a5 {was necessary, keeping a worse but playable position.})
15. Nh4 $1 {This strong manoeuvre helps White to grab the initiative.} Rfd8 16.
Nf5 Bf8 17. Nb5 $1 {White's cavalry is quite impressive!} Ne8 18. Bd6 $1 {
The most precise continuation - White's initiative already brings him extra
material.} Nxd6 ({Both} 18... Nef6 $6 19. Ne7+ Bxe7 20. Bxe7 Re8 21. Bxf6 Nxf6
22. Nd6 $18) ({and} 18... Ndf6 $6 19. Ne7+ Bxe7 20. Bxe7 Rd7 21. Bxc5 a6 22. b4
Qxb4 23. Bxb4 Rxc2 24. Nd4 $18 {were unsatisfactory for Black.}) 19. Nfxd6 Rb8
20. Nxb7 Rxb7 21. Rxd5 {White has won a pawn - the rest is a matter of
technique.} Rdb8 22. Qd2 $5 Qxd2 23. Rxd2 Nf6 24. Ra2 Ne4 25. Rc2 Rd7 26. g3 a5
27. Kg2 g6 28. Bf3 Nf6 29. Na3 $1 {A good rearrangement.} Bd6 30. Bc6 Rdd8 31.
Ra1 Be5 32. Bb5 Nd5 33. Rb1 Bd6 34. Rd2 Nb6 35. Rc1 $1 (35. Rbd1 $6 {was less
precise - after} Be7 {Black could either swap all the rooks or take control of
the d-file.}) 35... Be7 36. Re2 $1 Rbc8 37. Nb1 {White is slowly but
confidently improving his position.} Kg7 38. Nd2 Ra8 39. Nb3 Rdc8 40. Rec2 c4 (
{The pawn was lost anyway since} 40... Ra7 41. Nxc5 Rac7 {did not help due to}
42. Ne6+ $1) 41. Nd2 Ra7 42. Nxc4 Nxc4 43. Rxc4 Rxc4 44. Rxc4 f5 45. h3 $1 h5
46. g4 hxg4 47. hxg4 fxg4 48. Kg3 Bd6+ 49. Kxg4 Rc7 50. Bc6 Rf7 51. f4 Kh6 52.
Bd5 Rf6 53. Rc1 Kg7 54. b3 Rf8 55. Rd1 Bc5 56. Rd3 Ba3 57. Bc4 Bc1 58. Rd7+ Kh6
59. Re7 Bd2 60. Kf3 Bb4 (60... g5 {was met by} 61. Re6+ $1 Kg7 (61... Kh5 62.
Re5) 62. Ke2) 61. Rb7 Bc3 62. Bd3 $1 Rf6 63. Kg4 Bd2 64. f5 $1 {Black's king
was caught in a mating net so he resigned.} 1-0