Jerome Gambit: Slips

In the following game - likely played at a fast time control - Black's aggressive move turns out to be a defensive slip, and White is able to first pressure the enemy King, then checkmate it.

Wall, Bill - Leonid
lichess.org, 2017

1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+ 

4...Kxf7 5.Nxe5+ Nxe5 6.d4 Bxd4 7.Qxd4 d6 

8.O-O c5 9.Qd5+ Ke7 10.Bg5+ Nf6 11.Nc3 h6 12.Bxf6+ gxf6 13.f4 Nc6 14.Rad1 Be6 15.Qd3 Qb6 

Black attacks the enemy b-pawn and prepares a possible discovered check with ...c4. But he has left one of his own pawns open.

16.Qxd6+ Kf7 17.Nd5 Bxd5 18.Qxd5+ Kg7

The retreat to f8 was safer.

19.Qd7+ Kg6

Again, the safe square was f8. Running out into the open is deadly for the King.

20.f5+ Kh5 21.Qf7+ Kg4 22.Qg6+ Kh4 23.Rf4 checkmate