1. d2d4  1... g8f6  2. c2c4  2... e7e6  3. b1c3  3... f8b4  4. e2e3  4... e8g8  5. f1d3  5... c7c5  6. g1e2  6... d7d5  7. a2a3  7... b4c3  8. b2c3  8... d5c4  9. d3c4  9... d8c7 One of Nimzo-Indian tabias. 10. c4a2 This is  Carlsen's preferred choice. 10... b7b6  11. e1g1  11... c8a6  12. c1b2  12... b8c6  13. a1c1 [#] 13... a8c8  14. c3c4  14... c5d4  15. e3d4  15... c7e7 The queen is stepping out of the X-raying rook  on c1 as Black intends to start pressuring the hanging pawns. However  Carlsen goes for the standard: 16. d4d5 advance, which is coupled by  the not-so-standard: 16... e6d5  17. f1e1 White wants to prove that the  open files are worth the pair of excellent pawns. 17... a6c4 Nakamura  accepts the challenge. 18. e2g3  18... e7d8  19. a2b1 Keeping the pieces on board.  White will need those for the kingside attack. Carlsen's strategy becomes  obvious: his own pawns no longer obstruct the bishops. 19... b6b5 Black needs to defend the bishop to have the d5-d4 resource available. Of the two bishops, the dark-squared one is the real menace. 20. g3f5  20... d5d4 An important resource! 21. d1d2  21... c4e6  22. c1c5  22... a7a6 Carlsen: "Very provocative. Obviously, one of the ideas of  bringing the rook to c5 is to take on g7 and if I don't take then my  preceding play makes little to no sense." 23. f5g7  23... g8g7  24. d2g5  24... g7h8  25. g5h4 White's attack is nevertheless huge and Black is  barely holding on for dear life. 25... f8g8 Now Carlsen seizes the dark squares. 26. c5c6 Of course! Control of the dark-squares is worth the exchange.  26... c8c6  27. b2d4  27... h8g7  28. h4h7 