1. e2e4  1... c7c5  2. g1f3  2... b8c6  3. f1b5  3... e7e6  4. b5c6  4... b7c6  5. d2d3  5... g8e7  6. b2b3  6... e7g6  7. h2h4  7... h7h5  8. e4e5  8... f7f6  9. b1d2 Caruana offers a pawn. 9... d7d6 ...which Carlsen does not like.