1. e2e4  1... e7e5  2. g1f3  2... g8f6  3. f3e5  3... d7d6  4. e5f3  4... f6e4  5. d2d4  5... d6d5  6. f1d3  6... c8f5  7. e1g1  7... f8e7  8. f1e1  8... e8g8  9. b1d2  9... e4d6 This is a fashionable line for Black these days, but I'm sure Carlsen doesn't mind playing for a small advantage with White here. 10. d2f1  10... c7c6  11. c1f4  11... f5d3  12. d1d3  12... b8a6  13. f1e3  13... a6c7 Until now the players are following a game from the 2022 US Championship, but now Carlsen plays a different move. 14. f4d6 Not a new move, but played with more ambition than the original game. Why give up a bishop for a knight here $2 White wants to play a position with his two knights bothering Black's kingside. Black will need to play g7-g6 at some point, and White can then advance the h-pawn to create some weaknesses. 14... e7d6  15. g2g3 This is the novelty. A move in the style of the world champion, patient, improving the position. 15... f8e8  16. g1g2  16... d6f8  17. e1e2 Doubling the rooks on the e-file, a typical plan for White. Truth be told, Black's position is very solid, and Caruana would probably have no trouble defending it in a game played with a classical time control.