1. g1f3  1... c7c5  2. c2c4  2... g8f6  3. b1c3  3... b8c6  4. d2d4  4... c5d4  5. f3d4  5... e7e6  6. a2a3  6... f8c5  7. d4b3  7... c5e7  8. e2e4 From an English opening into a Hedgehog. 8... e8g8  9. f1e2  9... b7b6  10. e1g1  10... c8b7  11. c1e3  11... a8c8  12. f2f4  12... d7d6  13. a1c1 White makes more or less the same  moves and Be2-f3 would be played sooner or later. However, the move order  chosen by So seems to discourage the standard development of the black  pieces. 13... d8c7 Vachier-Lagrave is not afraid of ghosts. 14. e2f3  Overprotecting the pawn. 14... f8d8 [#] 15. c3d5 So decided to go for it anyway, and this  turned out to be a novelty. 15... e6d5  16. c4d5  16... c7d7  17. d5c6  17... b7c6 The same old problems with the e4 pawn appear for White.