1. c2c4  1... e7e5  2. g2g3  2... g8f6  3. f1g2  3... d7d5  4. c4d5  4... f6d5  5. g1f3  5... b8c6  6. e1g1  6... d5b6  7. b2b3 The Accelerated Dragon with reversed colors is a dangerous weapon for the  English player. The extra tempo that White has makes it easier for him to  prepare and execute the d2-d4 advance. 7... c8e6  8. b1c3  8... d8d7  9. d2d4 That is the most straightforward way to do it. 9... e5d4  10. c3b5 The pawn is doomed, therefore: 10... d4d3 Desperado! Let's do some damage before we leave the board. 11. c1b2 Carlsen is not  interested and proceeds with the development. 11... f7f6  12. b5d4  12... c6d4  13. f3d4  13... e6d5  14. g2d5 A novelty. 14... d7d5  15. d1d3  15... c7c5 The queen swap is the best under the  circumstances. Black is at least not getting checkmated. 16. d3b5  16... d5d7  17. b5d7  17... e8d7  18. d4f5 This superb knight is the reason why White has an edge. 18... d7e6  19. e2e4  19... a8c8  20. a1c1  20... c5c4 Nakamura thought this was wrong; he missed Carlsen's knight  maneuver to b5. But then what was the move Ra8-c8 all about? 21. f1d1  21... g7g6  22. f5d4  22... e6f7  23. d4b5 This is indeed very strong. Carlsen is widening  the area of his attack while his pieces are dominating. 23... f8e7  24. b5a7 Winning a pawn by force. 24... c8a8  25. a7b5  25... a8a2  26. b2d4  26... b6c8  27. c1c4  27... h8d8  28. c4c7 It was all in  Carlsen's hands now. An extra pawn and superior position should have been  enough to level the score. 28... b7b6  29. b5c3  29... a2c2  30. g1g2  30... f7e8  31. c3d5 White rushes to free himself from the  pin. 31... c2c7  32. d5c7  32... e8f7  33. c7d5  33... f6f5 This is the difference: Nakamura manages to swap some pawns. 34. f2f3  34... e7c5 The only move again. Black keeps on reducing the material. 35. d4c5  35... b6c5  36. d1c1  36... f5e4  37. f3e4  37... c8d6 '"Maybe a computer can win this  but I think practically it's already very hard when both players are on 20 seconds."' (Nakamura) 38. c1c5  38... d6e4  39. c5c7  39... f7e6 This is the major difference with the line  from above. The king is not forced into passive defense. 40. d5f4  40... e6f6  41. g2f3  41... e4d2  42. f3g4  42... d2b3 Without this pawn, Carlsen's chances become  purely practical. 43. c7h7  43... b3d4  44. h7a7  44... d8d6  45. a7a8  45... d4f5  46. a8f8  46... f6g7  47. f8a8  47... g7f6  48. a8a2  48... f5h6  49. g4f3  49... g6g5 Until a certain point Nakamura defends  flawlessly. 50. f4g2  50... h6f5  51. g2e1  51... f6g6 