1.Nh3

This move is subtler than 1.Nf3. There is still the threat of 2.Ng5, and with 2.e3 the white queen is not blocked by the Nf3. Black can play 1...h6 or 1...f6.

If black plays 1...g5 then 2.e3 Nf6 (if black tries to prevent 3.Qh5 with 2...h5 then 3.Qf3 Nf6 4.Nxg5 f5 5.Qd5) 3.Nxg5 h5 (otherwise 4.Qh5) 4.Qf3 f5 5.Qd5.

The move 1...c6 is tricky but should not save black.

The move 1...e5 is dubious.

The move 1...e6 may transpose to other lines. A possible line: 2.Ng5 f5 3.e3 Nc6 4.Bb5.