[Event "World Championship"] [Site "?"] [Round "11"] [White "Kasparov"] [Black "Karpov"] [Result "1-0"] [ECO "E21"] [Opening "Nimzo-Indian: Three Knights"] 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Nf3 O-O 5. Bg5 c5 6. e3 cxd4 7. exd4 h6 8. Bh4 d5 {Black finally stakes a claim in the center of the board. This is typical of hypermodern strategy, where central action is delayed for some time, but in this case the resulting position has quite a classical flavor.} 9. Rc1 dxc4 10. Bxc4 {Accepting an isolated d-pawn indicates that White is looking for a complex middlegame with attacking chances. There are many different strategies available to White, while Black tries to blockade the d5-square.} 10... Nc6 11. O-O Be7 {The bishop no longer serves any useful function at b4 so it retreats to e7 where it breaks the pin.} 12. Re1 b6 13. a3 Bb7 14. Bg3 Rc8 { Black threatens a discovered attack against the bishop at c4.} 15. Ba2 { White retreats the bishop but now Black can take over the initiative.} 15... Bd6 { Now I should have moved the bishop to e5, maintaining my attacking chances.} 16. d5 {This is a premature resolution of the tension in the center. 16.Be5! Bxe5 17.dxe5 Nd7 18.Bb1 There are still chances here to develop a successful kingside attack.} 16... Nxd5 17. Nxd5 Bxg3 18. hxg3 exd5 19. Bxd5 Qf6 20. Qa4 Rfd8 21. Rcd1 Rd7 {21...Qxb2? 22.Bxc6 Rxd1 23.Bxb7 White wins material.} 22. Qg4 Rcd8 {A costly oversight. Take a moment to try to find my next move. It isn't all that easy, but Karpov really should have seen it coming.} 23. Qxd7 { The attack plays itself.} 23... Rxd7 24. Re8+ Kh7 25. Be4+ { Karpov resigned, since he was about to lose more material.} 25... g6 26. Rxd7 Ba6 27. Bxc6 Qxc6 28. Rxf7# 1-0