1.Nf3 f6 2.e4 d5 3.Nc3

Black can try:

3...b5,

3...c6 4.Nb5 cxb5 5.Bb5 Nc6 6.d4 dxe4 7.Qh5 g6 8.Qd5 Qa5 9.c3,

3...a6 4.d4 Bg4 5.exd5 and black can play 5...e6, 5...e5 or 5...c6.