1. e2e4  1... e7e5  2. g1f3  2... b8c6  3. f1c4  3... f8c5  4. c2c3  4... g8f6  5. d2d4 The good old classical  line that So already used to beat the world champion earlier this year. 5... e5d4  6. e4e5  6... d7d5  7. c4b5  7... f6e4  8. c3d4 