1. e2e4  1... e7e5  2. g1f3  2... b8c6  3. f1b5  3... g8f6  4. d2d3  4... f8c5  5. b5c6 Caruana is a great specialist in this system against the Berlin Defense. It leads to positions of a slow and positional character. 5... d7c6  6. e1g1  6... f6d7  7. b1d2  7... e8g8  8. d2c4  8... f7f6  9. a2a4  9... a7a5  10. f3h4 White's idea is based on playing on the kingside with the f4-break at some point. Black has the bishop pair and a solid position; the doubled pawns are not so bad. When the pawn moves from c6 to c5, Black has excellent central control. The evaluation is one of balance, but many players with White like to try this type of position as it is an anti-computer way of playing. The game is more about maneuvers and less about forced lines. 10... f8f7  11. g1h1  11... d7f8 A new and logical move: the knight protects the king and can go to e6. 12. c1e3 When your opponent has the bishop pair, exchanging one of them is usually a good strategy. 12... c5e3  13. c4e3 