Opening the cage for his  light-squared beast.
1. e2e4  1... c7c5  2. g1f3  2... b8c6  3. f1b5  3... e7e6  4. b5c6  4... b7c6  5. d2d3  5... d8c7  6. e1g1  6... g8e7  7. h2h4 A novelty, as early as move seven! Caruana created a whole new system to  fight Carlsen's beloved Anti-Rossolimo line and was hugely successful in  the match so far. 7... e6e5  8. h4h5  8... e7g8 In the few minutes between the games Carlsen figured out a  good plan to fight the opponent's plan! 9. f3h2  9... g8f6  10. f2f4  10... f8e7  11. b1c3  11... d7d6  12. h5h6 Overoptimistic! Caruana wants to punish his opponent  for the slow development, but his king gets weakened in the process as  well. 12... g7h6  13. f4f5  13... h8g8  14. c1h6 