[Event "Bugonjo"] [Site "?"] [Round "0"] [White "Kasparov"] [Black "Petrosian"] [Result "1-0"] [ECO "E11"] [Opening "Bogo-Indian: 4.Bd2"] 1. d4 {Former World Champion Petrosian beat me twice in 1981. My aggressive play did not bring me any luck, so at the super-tournament at Bugojno, I decided to try to play positionally against him. The result was one of my best games.} 1... Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 5. g3 Bxd2+ 6. Qxd2 O-O 7. Bg2 d5 {A quiet system. I just want to get my pieces developed comfortably.} 8. O-O dxc4 9. Na3 c5 10. dxc5 Qxc5 11. Rac1 Nc6 12. Nxc4 Qe7 { Petrosian reacts a bit nervously, and will find it hard to develop his bishop.} 13. Nfe5 Nxe5 {13...Bd7 14.Nxd7 Qxd7 15.Qxd7 Nxd7 16.Nd6} 14. Nxe5 Nd5 { An attempt to limit the power of my bishop, but the d5-square is now a target.} 15. Rfd1 Nb6 16. Qa5 {An interesting move. The idea is to transfer my queen to c5 at the appropriate time. As it turns out, that moment will be the final move of the game!} 16... g6 {This creates holes in the kingside, but without a dark-squared bishop there is not too much I can do with them.} 17. Rd3 Nd5 18. e4 {One might think that Petrosian welcomed this development, since now my bishop is cut off by its own pawn. But I have other ideas for the bishop.} 18... Nb6 19. Bf1 Re8 20. Rdd1 {The rook is no longer accomplishing anything on the third rank, and I need to bring my bishop into the game.} 20... Rf8 21. a3 Kg7 22. b3 Kg8 23. a4 {My pawns are sneaking up the queenside with a purpose. I can now plan on moving a rook to c5 and then bringing the queen behind it for support from c3 which also operates on the long diagonal.} 23... Rd8 {Black must try to contest the open files, but now the weakness of the back rank becomes important.} 24. Qc5 {Here Petrosian resigned. If 24...Re8, then I would have exchanged queens and then checked on the 8th rank, followed by an advance of the a-pawn, which would have deprived the bishop at c8 from its defense.} 24... Qxc5 25. Rxd8+ Qf8 {25...Kg7 26.Rxc5} 26. Rxf8+ Kxf8 27. Rc7 {The invasion of the rook on the seventh rank is decisive, even though the material is even.} 27... f6 28. Ng4 1-0