1. e2e4  1... e7e5  2. g1f3  2... g8f6  3. f3e5  3... d7d6  4. e5f3  4... f6e4  5. d2d4  5... d6d5  6. f1d3  6... c8f5  7. e1g1  7... f8e7  8. f1e1  8... e8g8  9. b1d2  9... e4d6 This is a fashionable line for Black these days, but I'm sure Carlsen doesn't mind playing for a small advantage with White here.