1.Nh3 f6 2.e4 d5 3.Na3 b5 4.d4 Nh6 5.Bxh6 Bg4

The main line starts with 6.f3 Bxh3 7.c3 (or 7.exd5 e6 8.d5 Bd6 9.f4 h5 10.g3) 7...e6 (or 7...h5 8.exd5 e6 9.d5 Bd6 10.Bd3 g6 11.f4) 8.exd5 g6 9.d5 Bh6 10.d6.