1. e2e4  1... c7c5  2. g1f3  2... d7d6  3. d2d4  3... c5d4  4. f3d4  4... g8f6  5. b1c3  5... a7a6  6. h2h3 It is extremely hard to guess what will Caruana choose against the Najdorf, but this modest-looking move seems to suit his style well. 6... e7e6  7. g2g4  7... h7h6  8. a2a3 A crafty little move, which still needs to prove later that it is useful. But since Black's main idea is to attack the center and the queenside with a b7-b5-b4 thrust, it certainly makes sense. 8... f8e7  9. c1e3  9... b8c6  10. h1g1  10... f6d7 A typical maneuver and a novelty. 11. f1e2  11... g7g5 \"Probably not really good for Black.\" (Caruana) 12. d1d2  12... c6e5  13. e1c1  13... b7b5  14. h3h4 This is the reason why Caruana did not trust the g7-g5 push. White will be the one to capitalize on the opening of the h-file. 14... c8b7  15. h4g5  15... h6g5  16. g1h1  16... h8g8 Chigaev knows that this rook is a most important defender. 17. h1h5 Very logical and straightforward play by White.