1. d2d4  1... d7d5 In a delicate match moment, Carlsen chooses to play a la  Nakamura. The American GM had won the first game as White and was doing  great in the second as well, probably missing a chance to increase his  lead. 2. c2c4  2... e7e6  3. b1c3  3... a7a6  4. c4d5  4... e6d5  5. c1f4  5... g8f6  6. e2e3  6... f8d6  7. f4d6 7.Bg5 is the modern continuation. 7... d8d6  8. f1d3  8... c8g4 A tricky idea and a promising side line. 9. d1b3  9... b8c6  10. h2h3  10... g4h5 Both Nakamura and Carlsen were once trained by  Kasparov, a man who had his seal of approval on the Queen's Gambit, and  this opening served him well all his life with both colors. Therefore,  White's next move is a bit puzzling. 11. g1e2 I do not like this  novelty at all. 11... h5e2 Because of this move, Carlsen did not hesitate to trade  his problematic bishop at once and to keep his valuable knights on board.  As Kasparov proved in his games, a super-knight on the d6-square is a  dream for the QGD player. 12. c3e2  12... e8g8  13. a1c1  13... c6d8 A nice maneuver. The knight is heading to the e6-square and  from there, depending on the circumstances, it can attack on the kingside  via g5, defend the queenside via c7, or continue maneuvering as in the  game. 14. b3a3 Nakamura is trying to distract his opponent from his  general plan: a kingside attack. 14... d6d7 Correctly avoiding the trade.