[Event "USSR Championship"]
[Site "?"]
[Date "1981.??.??"]
[Round "?"]
[White "Kasparov"]
[Black "Yusupov"]
[Result "1-0"]
[PlyCount "78"]

1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 a5 5. g3 O-O 6. Bg2 b6 7. O-O Ba6 8. Bg5 Be7 9. Qc2 Nc6 10. a3 h6 11. Bxf6 Bxf6 12. Rd1 Qe7 13. e3 { This leads to overcrowding on the queenside. Better was 13...g6. } 13... Rae8 { In this slow opening, Black has actually outstripped White's development. But White controls the center, and d7-d5 will not be appropriate because of the position of the White queen, putting pressure on the c-file. } 14. Nfd2 { A strong move which threatens to post the knight effectively at e4, while opening up lines for the Bg2 and threatening to disrupt Black's pawn structure . In addition, the Pc4 is guarded so that the other knight can enter the game. } 14... g5 { Black overreacts to the positional strength of White's game. 14...g6 would have been more solid. } 15. Nc3 Bg7 { White should probably bring Black's extended fianchetto into question by playing 16.f4, but he is concentrating on the queenside, and in particular, on the c-file. } 16. Nb5 Qd8 17. f4 Ne7 { Black has taken advantage of White's faulty plan by reorganizing his pieces so that the Ne7 can take part in the defence. Unfortunately, Yusupov soon forgets why he wanted the knight at e7. } 18. Nf3 Nf5 19. Qf2 { Kasparov notes that this was not the correct square for the queen. It would have been better placed at e2, where it could protect the pawn at c4. } 19... c6 20. Nc3 gxf4 21. gxf4 Bxc4 { Although White is a pawn down, he is at the same time almost a piece ahead, because Black's light-squared bishop is incapable of reaching the kingside to help in the defence. In addition, White now takes charge of the center. } 22. e4 { Now Yusupov makes a major strategic error. He must return the knight to its defensive post at e7. } 22... Nd6 { 22...Ne7 23.Kh1! f5 24.e5 brings White sufficient compensation for his pawn, because Black's kingside is very weak. } 23. Ne5 f5 24. Nxc4 Nxc4 { Black does not mind parting with his bishop, but the problem is that the Nc4 is far away from the kingside. Kasparov now chases it to an utterly useless position on the back rank. } 25. b3 Nd6 26. e5 Nc8 { At this point White must determine his strategy for the remainder of the game. His goal is to infiltrate the kingside, and exploit the weak light squares. 26...Ne4 27.Bxe4 fxe4 28.Nxe4 is clearly better for White, with a SuperKnight at e4 and threats along the g-file. } 27. Bf3 { Clearly the bishop must get involved in this task. } 27... Kh7 { Black escapes the g-file, and hopes to use it to exchange rooks, lessening White's attacking force. } 28. Bh5 Re7 29. Kh1 Rg8 { Although thi s is consistent with Black's plan, he chooses the wrong rook. The correct strategy was 29...Bh8! followed by Re7-g7. } 30. Rg1 Bh8 { If White's stood on f5, and were not attacked, then mate in two. But how do we realize this fantasy? The solution is stunning! 30...Bf8? 31.Qh4 sets up a very nasty pin! } 31. Ne4 { Because of the threat of Nf6+, the knight must be captured. But this gives White access to the f5-square. The sacrifice of material is not so important because Black's knight is so out of play. } 31... fxe4 32. f5 Rg5 { An error in time pressure. Black should have brought the queen over to help with the defense: 32...Qf8 33.Rxg8 Kxg8 34.f6! Rg7! } 33. Rxg5 hxg5 34. f6 Kh6 { 34...Qf8 35.fxe7 Qxf2 36.e8Q wins because Black has no checks. } 35. fxe7 Qxe7 { 35...Nxe7 36.Qf7 Bg7 37.Rf1 Bh8 38.Rf6+ Bxf6 39.exf6 } 36. Bf7 d6 { 36...g4 37.h4! gxh3 38.Rg1 Bg7 39.Qf4+ Kh7 40.Qxe4+ Kh8 41.Qg6 } 37. Rf1 g4 38. Bxe6 Qxe6 39. Qh4+ Kg7 { and here Black resigned before I could play 40.Rf6. } 1-0