1. d2d4  1... g8f6  2. c2c4  2... e7e6  3. g1f3  3... d7d5  4. b1c3  4... f8e7 Unsurprising choice by Nakamura  who obviously feels very safe in the Queen's Gambit. 5. c1f4  5... e8g8  6. e2e3  6... b8d7  7. c4c5  7... c7c6  8. h2h3  8... b7b6  9. b2b4  9... a7a5  10. a2a3  10... h7h6  11. f1d3  11... c8a6  12. e1g1  12... d8c8  13. c3a4  13... c8b7 Basically, winning a valuable tempo. 14. d1c2  14... a6d3  15. c2d3  15... f6e4 With the extra pressure against the c5 pawn  White cannot push b4-b5 that easily. 16. f1b1  16... a5b4  17. a3b4  17... b6b5  18. a4c3  18... f7f5 Now it is a Stonewall set-up, without the usually poor light-squared  bishop for Black, but with an open a-file which favors White. 19. c3e2 The beginnig of a nice maneuver. 19... e7f6 From here on  Nakamura wishes for one thing only- the e6-e5 break. On the queenside it  is like a game of a "blink." Whoever blinks first gives something along  the a-file. 20. f3e5  20... e4g5  21. e5d7  21... b7d7  22. e2c1 Aronian proceeds with the knight dance. It seems as the knight is heading towards the a5 square. 22... g5f7  23. d3c3 Aronian overprotects the e5 square. 23... f8e8  24. c1d3 Aha, this is where the kngiht was heading to! e6-e5 is out of the equasion for good. 24... d7b7  25. b1b3 And it is White who can make  better progress on the queenside. 25... a8a4 Nakamura decided to defend aggressiveley. 26. a1a4  26... b5a4  27. b3a3  27... b7b5  28. c3c2  28... e8a8  29. f4c7  29... f6d8 This must have been  based on miscalculation. 30. c7a5 The pawn is a goner, Nakamura started shaking his head in  disbelief at this point. 30... d8f6 Back to the e6-e5 break, Black's  only chance. 31. f2f4 White stops the e6-e5 break for good, but how dangerous this pawn  clash really was? 31... g7g5 Blunder or not, Nakamura always finds counterplay. 32. g2g3  32... h6h5  33. c2a4  33... b5a4  34. a3a4  34... h5h4  35. g3h4 And the counterplay pays off! 35... g5f4  36. d3f4  36... e6e5 Even in the endgame this is good. 37. f4g6  37... e5d4  38. e3d4  38... f6d4  39. g1f1  39... d4f6 Black is back in the game. He  brought his pieces out and traded a bunch of pawns. 40. a4a2  40... g8h7  41. h4h5  41... f7g5  42. g6f4  42... g5e4  43. f4d3  43... f6d4 