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 