1. g1f3  1... g8f6  2. g2g3  2... g7g6  3. b2b3 Carlsen decides not to enter into a theoretical battle in the opening and chooses the calm double fianchetto variation. 3... f8g7  4. c1b2  4... d7d6  5. f1g2  5... e7e5  6. d2d3  6... e8g8  7. c2c4 White's system is harmless for an elite classical game, but in rapid a normal position is enough to fight for a win. 7... a7a5  8. b1c3  8... h7h6 This move is new. There are many ways for Black to play and possibly 8...c6 is the most accurate, since there's no clear use for the h-pawn advance at the moment. 9. e1g1  9... c7c6  10. e2e4  10... f8e8  11. f1e1  11... b8a6  12. h2h3  12... c8d7 Too slow. 13. d3d4  13... e5d4  14. f3d4  14... a6c5 By somewhat tortuous paths, the position has reached a typical battle of the King's Indian fianchetto variation. White has more space and the possibility of attacking the d6-pawn or advancing with f2-f4, g3-g4 and so on. Black has the strong bishop on g7 and some chances of counterattack on the queenside. 15. d1c2  15... d8c8  16. g1h2  16... f6g4  17. h3g4  17... g7d4  18. a1d1  18... d4g7  19. f2f3 White's pawns have lost some of their mobility, but the rest of the advantage is maintained: more space and the possibility of attacking on d6. White should still be alert to always have the option of responding to a5-a4 with b3-b4. 19... c8c7  20. c2d2  20... d7e6 Without caring about the d6-pawn. 21. c3e2  21... e8d8 Once again missing the chance for counterplay with …a5-a4. 22. b2g7  22... g8g7  23. d2c3  23... f7f6  24. d1d2  24... c7e7  25. e1d1 White has solidified his position and has a clear advantage. 25... e6f7  26. e2d4  26... d8d7  27. f3f4 Carlsen decides to advance the kingside and the game becomes sharper. 27... g7g8  28. d2e2 Black no longer has time to regroup with Re8-Qd8, as the a5-pawn can simply be captured. 28... a5a4 Trying to complicate the game. 29. b3b4  29... c5a6  30. b4b5 There was no need to complicate the game, but calling it a mistake is maybe too much. White keeps a clear and stable advantage with 30.a3 or 30.Nc2. 30... c6b5  31. d4b5 White goes after the d6-pawn. 31... a8c8  32. e2d2 Subtle play by Carlsen. I'd have played 32.Rd4 and I imagine many would do the same. 32... c8c4  33. c3e3  33... d6d5 Exploiting the pin. 34. e4e5  34... a6c7  35. b5c7  35... c4c7  36. g2d5  36... f7d5  37. d2d5  37... d7d5  38. d1d5 The game has simplified and Black can count on a draw. 38... e7e6  39. e3d3  39... e6g4 This move finds a nice refutation. 40. e5e6 A brilliant move. 40... c7g7  41. f4f5 Another superb move, cutting the queen from the attack on the e6-pawn. 41... g6f5  42. d5d8  42... g8h7  43. d8d7  43... g4h5  44. h2g2  44... h5g6  45. d7g7  45... g6g7  46. d3d7  46... f5f4  47. g3g4  47... f6f5  48. e6e7  48... g7g4  49. g2f2  49... g4g3  50. f2e2 There's no perpetual check. The adventures, however, aren't over. 50... f4f3  51. e2e3  51... f3f2 Missing a golden chance. 52. e3e2  52... g3e5  53. e2f2  53... e5f4  54. f2e2  54... f4e4 The king will now take a long journey to hide from the queen. 55. e2d2  55... e4f4  56. d2c3  56... f4e3  57. c3b4  57... e3b6  58. b4c4  58... b6a6  59. c4c5  59... a6a5  60. c5d6  60... a5b6  61. d6e5  61... b6e3  62. e5f6  62... e3g5  63. f6e6  63... g5g6  64. e6d5  64... g6g2  65. d5c5  65... g2f2  66. c5b5  66... f2b2  67. b5a5  67... b2c3  68. a5b6  68... c3b4  69. b6c7 