A strong regrouping. Black's initiative is  obstructed before it even starts.
1. d2d4  1... g7g6 Nakamura abandons his safe QGD approach for an old love of his,  the KID. 2. c2c4  2... f8g7  3. e2e4  3... d7d6  4. b1c3  4... g8f6  5. g1f3  5... e8g8  6. f1e2  6... e7e5  7. e1g1  7... b8c6  8. d4d5  8... c6e7  9. b2b4  9... f6e8  10. a2a4  10... f7f5  11. a4a5  11... e8f6  12. f1e1  12... h7h6  13. e4f5 An early  novelty. 13... c8f5 As strange as this may sound, after this Black's position is not easy. 14. a1a2 A nice prophylactic move. The rook sidesteps the black bishop's  X-raying and protects the f2-point just in case. 14... g6g5  15. h2h3  15... d8e8 