1. c2c4  1... g8f6  2. b1c3  2... e7e5  3. g1f3  3... b8c6  4. d2d4 Carlsen likes the English Opening and plays it often, but the text move is a new weapon in his arsenal, as I haven't found any games of his with this move. 4... e5d4  5. f3d4  5... f8b4  6. g2g3  6... e8g8  7. f1g2  7... f8e8  8. e1g1  8... h7h6 This is a new move. Black normally captures the knight as soon as it's unpinned. 9. c3d5  9... f6d5 Black has to capture the knight. 10. c4d5  10... c6d4  11. d1d4 This position is strategically dangerous for Black, who runs the risk of becoming passive, while White exploits the better pawn structure and the semi-open c-file. 11... d8e7 [%c_effect e7;square;e7;type;Inaccuracy;persistent;true] 12. c1e3  12... b4d6  13. f1d1 [%c_effect d1;square;d1;type;GreatFind;persistent;true] A very good prophylactic move, avoiding the advance of the c-pawn. 13... b7b6  14. d4d2  14... a7a5  15. a1c1  15... a8b8 An odd move, but Nakamura takes the rook off the dangerous diagonal and has his eye on Bc5 or Bb4. 16. e3f4  16... c8a6  17. e2e4  17... d6f4  18. d2f4  18... d7d6  19. c1c3 White now has a comfortable advantage, with more space, a better pawn structure, and endless pressure on the c7-pawn. To be honest, I think Nakamura is the only player in the world capable of defending a position like this in a rapid game against Carlsen.