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.