1. e2e4  1... e7e5  2. g1f3  2... b8c6  3. b1c3  3... g8f6  4. f1b5  4... f8d6 A fighting move. Caruana avoids the many theoritecial drawish lines. 5. d2d3  5... e8g8  6. e1g1  6... h7h6  7. g1h1 Preparing a quick f2-f4 in the spirit of the Rossolimo line. 7... f8e8 Black wants to retreat the bishop to f8 once that his center  is defended. 8. b5c6  8... b7c6 Another fighting move. 9. f3g1  9... d6f8  10. f2f4  10... e5f4  11. c1f4  11... d7d5 This is why Caruana recaptured with the c-pawn. He wants a piece of the center. At this stage of the game the  American GM skillfully outplays his opponent. 12. e4e5  12... c8g4  13. d1d2  13... f6h5  14. a1e1  14... a8b8 Sending the rook to the center! 15. h2h3  15... h5f4 