1. c2c4  1... e7e5  2. g2g3  2... g8f6  3. f1g2  3... d7d5  4. c4d5  4... f6d5  5. g1f3  5... b8c6  6. e1g1  6... d5b6  7. b2b3  7... f8e7  8. c1b2  8... f7f6  9. b1a3 A novelty. The knight is moving towards the c2  square from where it can support the central break with d2-d4. 9... c8e6  10. a3c2  10... e8g8  11. e2e4 An important part in White's plan. 11... d8d3  12. f1e1  12... a8d8 The main reason for Black's problems. Choosing  the right rook to place on a file is an eternal problem for players at all levels. This rook seems to be more natural contender for the open file as  the other one can be quite useful on the kingside. However, there is a  minor tactical defect in the position which ruins this logic. 13. g2f1 Caruana frees himself in the center and gets better position. 13... d3d7  14. d2d4  14... e5d4  15. c2d4  15... e6g4  16. d1c2  16... c6d4  17. f3d4  17... f8e8 Sevian is developing naturally and occupies  the central files with his rooks. 18. a1c1  18... c7c6  19. b3b4 Minority attack is an effective way of creating  weaknesses on the queenside. 19... g8h8  20. b4b5  20... c6c5  21. d4f5  21... e7f8  22. h2h3  22... g4f5 Going into passive position.