[%c_effect d5;square;d5;type;Inaccuracy;persistent;true] A tempting move, but Nakamura finds the best reaction.
1. e2e4  1... c7c5  2. g1f3  2... d7d6  3. d2d4  3... c5d4  4. f3d4  4... g8f6  5. b1c3  5... e7e5 Nakamura surprisingly repeats the risky experiment that guaranteed him a draw against Caruana in the Candidates Tournament—but did not yield a good position in the opening. 6. f1b5 [%c_effect b5;square;b5;type;GreatFind;persistent;true] 6... b8d7  7. d4f5  7... a7a6  8. b5e2 A new idea in this particular theoretical battle. 8... d7c5 The most natural square for the knight, although 8...Nb6 has also been played. 9. f5g3  9... b7b5 There are alternatives: 10. a2a3 A bit timid. 10... f8e7  11. e1g1  11... e8g8  12. c1e3  12... c8b7  13. e2f3  13... g7g6  14. d1d2  14... h7h5 [%c_effect h5;square;h5;type;GreatFind;persistent;true][%c_highlight e4;keyPressed;none;opacity;0.8;square;e4;persistent;false] Black is preparing h5-h4 with an unpleasant attack on the e4-pawn. The opening was a success for Nakamura. 15. e3h6  15... f8e8  16. f1e1 The e4-pawn is defended, but the white pieces are not well placed. 16... c5e6  17. a1d1  17... e6d4 [%c_effect d4;square;d4;type;Mistake;persistent;true] A tactical mistake: Nakamura certainly missed the next move. 18. g3f5 [%c_effect f5;square;f5;type;GreatFind;persistent;true] The g3-knight, which was previously limited, finally finds meaning in its existence. 18... d4f5  19. e4f5  19... b7f3  20. g2f3  20... d8c8  21. f5g6  21... f7g6  22. h6g5 [%c_highlight c3;keyPressed;none;opacity;0.8;square;c3;persistent;false] Both sides have weaknesses, but the light squares carry more weight. White's knight is a formidable piece, and Caruana's position is superior. 22... c8f5  23. g5f6  23... f5f6 