1. e2e4  1... c7c6  2. d2d4  2... d7d5  3. e4e5  3... c8f5  4. b1c3  4... e7e6  5. g2g4  5... f5g6  6. g1e2  6... c6c5  7. h2h4  7... h7h5  Grischuk was in must-win situation and the opening definitely suited him. 8. e2f4  8... g6h7  9. f4h5  9... b8c6  10. d4c5  10... f8c5  11. c1g5  11... d8c7  12. f2f4  12... d5d4  13. c3b5  13... c7a5 Probably not the most accurate. 14. d1d2  14... c6b4 One more innacuracy, which worked greatly for Black! 15. b5a3  15... h7c2 Missing the spectacular blow. 16. a3c4  16... a5a4  17. e1f2 Leaving the endangered diagonal. 17... d4d3  18. f2g3 The king looks safe behind the pawns. 18... h8h5 But Grischuk spoils the comfort. 19. g4h5  19... g8e7  20. g5e7 The knight  should not be allowed access to the f5 outpost. 20... c5e7  21. f1g2 For the exchange Black has ample compensation thanks to his safer king, better pawn structure and bishop pair. 21... e8c8  22. c4e3  22... c8b8  23. h1c1  23... e7c5 Both sides try improve their pieces to the maximum, but the  impression is that Black has the easier task. 24. c1e1  24... a4b5  25. g2e4  25... f7f5 Finally Grischuk opens the position of the enemy  king. 26. e5f6  26... g7f6  27. h5h6 This pawn seems insignificant but it definitely  keeps Black busy. 27... f6f5  28. e4f3  28... c5d6  29. e3g2 Stabilizing the  kingside situation. 29... b5d7  30. g3h3  30... b4a6 Grischuk is carefully rerouting the knight towards the  center. 31. d2e3 A nice maneuver by Caruana; the queen is centralized. 31... a6c7  32. e3d4  32... d7h7  33. d4g7 As a result of the centralization Caruana can swap the queens off and secure his king. 33... h7g7  34. h6g7  34... d8g8  35. f3d1 The point behind the trade. White deprives his  opponent of the bishop pair and can finally deal with the d-pawn. It is  Black who needs to play extremely cautiously now. 35... d3d2  36. e1e2  36... c2e4  37. e2d2  37... c7d5  38. d1b3 Playing for a win. 38... g8g7  39. b3d5  39... e6d5  40. a1f1  40... d6b4  41. d2e2  41... d5d4 It is Grischuk's time to consolidate. 42. e2f2  42... b4c5  43. a2a3  43... d4d3  44. f2d2  44... a7a5  45. g2e1  45... g7d7  46. e1g2  46... a5a4 Trying again to play for  more than a draw. 47. f1d1  47... c5b6 An inaccuracy. 48. g2e1  48... b6a5  49. d2d3 Caruana executes his main idea. 49... e4d3  50. d1d3  50... d7e7  51. e1f3 Black is in trouble. Not only is he a pawn down, but  his pawns are weak. 51... e7e2  52. h4h5  52... e2b2  53. f3e5  53... b2b3  54. h5h6  54... a5c3 I do not know how Grischuk does it, but with seconds on the clock he manages to squeeze unbelievable defensive resources out of a completely lost position. 55. h6h7 The obvious move which is not the best one. 55... c3e5  56. d3b3  56... a4b3  57. f4e5  57... b3b2  58. h7h8q  58... b8a7  59. e5e6  59... b2b1q Who  could have possibly thought of a pure queen endgame after the incredible  middle-game? 60. h8e5  60... b1h1  61. h3g3 Alas, despite all the creativity Black remained in  trouble. It is easier to coordinate the efforts of the white pieces when  advancing the passer and this is why he is winning. 61... h1g1  62. g3f3  62... g1f1  63. f3e3  63... f1e1  64. e3f4 