Necessary to bring the knight into play. Black solves his problems.
1. d2d4 Three main pawn moves are equally acceptable. 1... e7e5 A bold move that doesn't seem quite right. 2. c2c3 A bit timid. 2... d7d5  3. d4e5  3... e8e5  4. h1g3  4... f8g6 A very strange move but not so bad as it looks. The knight has no squares from h8, but the point of the move will become clear soon. 5. f1d2  5... d8g8 Surprise $1 The weird types of castling are one of the highlights of freestyle chess. 6. d2f3  6... e5e7  7. e1d2 Also preparing castling, but this isn't the best. 7... c7c6  8. d1g1 