1. e2e4  1... c7c6  2. g1f3  2... d7d5  3. b1c3  3... g8f6  4. e4e5  4... f6g8 A paradoxical move, reminding  of some games of Nimzowitsch. Black welcomes a closed pawn structure,  similar to the French, while accepting a loss of no fewer than three  moves. What makes it playable is the early development of the white  knights that takes away important pawn moves, c2-c3 and f2-f4. 5. d2d4  5... c8g4 This is another important detail: Black won't get stuck  with the bad Bc8. 6. f1e2 