1. e2e4  1... e7e5  2. g1f3  2... b8c6  3. f1b5  3... a7a6  4. b5a4  4... g8f6  5. e1g1  5... f8e7  6. f1e1  6... b7b5  7. a4b3  7... e8g8  8. a2a4 A solid opening choice by Topalov. 8... a8b8  9. d2d3  9... d7d6  10. h2h3  10... c6a5 Anand adopts a Chigorin-style setup. 11. b3a2  11... c7c5  12. a4b5  12... a6b5  13. c2c3 A flexible move and a novelty by Topalov $1 White does not determine yet the route for his queenside knight. 13... a5c6 The knight has done its job and returns to the center. 14. b1a3  14... h7h6 Now Bc1-g5 is stopped for good. 15. a3c2  15... f8e8 Black is slowly preparing to swap off the light-squared bishop. 16. c2e3  16... e7f8  17. c1d2  17... c8e6  18. a2e6  18... e8e6 Anand has managed to keep his pawn structure intact. Topalov, on the other hand, has control over the only open file and may still hope to use the relative weakness of the light squares in the center. 19. d1b3  19... d8c8 [%c_effect c8;square;c8;type;GreatFind;persistent;true] An accurate move. 20. a1a2  20... e6e8  21. e1a1  21... c8e6 The e6-square is once again used to reduce the pressure on the light squares. 22. e3d5 [%c_effect d5;square;d5;type;Interesting;persistent;true] An attempt to get an advantage. However, the self-pin might backfire. 22... g8h8 [%c_effect h8;square;h8;type;GreatFind;persistent;true] Another subtle move by Black. The king is side-stepping the checks. White has to be careful now. 23. c3c4  23... b5c4  24. b3c4  24... e8c8  25. d5f6 Anand starts to initiate threats on the kingside. 25... e6f6  26. d2c3 Topalov is trying to restrict his opponent's knight, but this move is a step in the wrong direction. 26... c6d4 [%c_effect d4;square;d4;type;GreatFind;persistent;true] A nasty move. 27. f3d2 And a mistake in return $1 27... d4e2  28. g1f1  28... e2f4 This attack is serious. 29. a2a7  29... h8g8 [%c_effect g8;square;g8;type;GreatFind;persistent;true] More great prophylaxis by the Indian GM. 30. a1a6 Topalov also uses prophylaxis. But here this most natural human reaction turns into a waste of time. 30... c8e8 [%c_effect e8;square;e8;type;GreatFind;persistent;true] The rook is lifted on the sixth rank, thus breaking the pin. 31. a7d7  31... b8a8 [%c_effect a8;square;a8;type;Interesting;persistent;true] A sudden change in the angle of attack. Or rather, more prophylaxis. Anand reduces the pressure against his f7-pawn. 32. a6a7  32... a8a7  33. d7a7  33... f6g6 The attack resumes at full pace. 34. g2g3  34... f4h3  35. d2f3  35... g6h5 This is good enough for a serious edge. 36. f1g2  36... e8e6  37. f3h4  37... h3f4 Anand almost misses the win. 38. g3f4  38... e5f4 [%c_effect f4;square;f4;type;GreatFind;persistent;true] The only move to continue the attack. 39. h4f5 Now it is lost. 39... h5d1  40. a7f7 A desperate try. 40... g8f7  41. c4d5  41... d1g4  42. g2f1  42... f4f3  43. f5e3  43... g4g5 Anand has won the exchange and quickly consolidates his advantage. 44. e4e5  44... d6e5  45. d5f3  45... f7g8  46. f3d5  46... g5g6  47. e3c4  47... g8h7  48. c4e5  48... g6f5  49. d5e4  49... f5e4  50. d3e4 