I plan on playing the Jerome Gambit (1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+) in every game with the White pieces in the ongoing "Giuoco Piano" tournament at Chess.com, regardless of the strength of my opponent.
The following game is my second win, and it probably should be considered giving "Jerome Gambit" odds, as I outrated my opponent by quite a bit.
perrypawnpusher - Ben_is_not10
3 d/move, "Giuoco Piano" Chess.com, 2021
1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+
4...Kxf7 5.Nxe5+ Nxe5 6.Qh5+ g6 7.Qxe5 Qe8
This is an interesting idea, not fully realized. Black is willing to sacrifice his Rook - see "Jerome Gambit: What About the Rook?" - counting on a strong counter-attack starting with ...Qxe4+.
This is similar to Whistler's defense, where Black plays 7...Qe7, which is more prudent, as it protects his Bishop.
8.Qxc5
Challenging the defense. Capturing the Rook, instead, would be a mistake that would allow a transposition to Whistler's line - not something that I would recommend, although players have done so and survived:
8.Qxh8?Qxe4+
The best move, but others have been played -
8...Nf6? 9.Qxe8+ Kxe8 10.Nc3 Bd4 11.d3 Bxc3+ 12.bxc3 Ng4 13.O-O d5 14.e5 c6 15.h3 c5 16.hxg4 Bxg4 17.f3 d4 18.fxg4 dxc3 19.e6 c4 20.Rf7 cxd3 21.cxd3 c2 22.Bg5 h6 23.Bxh6 g5 24.Rf8+ Ke7 25.Rxa8 c1=Q+ 26.Rxc1 Kd6 27.Rxa7 Kxe6 28.Bxg5 Ke5 29.Rxb7 Kd4 30.Rb4+ Kxd3 31.Rd1+ Kc3 32.Rdd4 Kc2 33.Rdc4+ Kd1 34.Rb2 Ke1 35.Rc1 checkmate, mwafakalhaswa - jcatinis, lichess.org, 2019;
8...Kf8? Black resigned, Littleplayerparis Adyant501021, lichess.org, 2021; and
8...Bd6? 9.Qxh7+ Kf8 10.O-O Be5 11.d3 d6 12.Bh6+ Nxh6 13.Qxh6+ Kf7 14.Qh7+ Kf6 15.Nd2 Bxb2 16.Rae1 Be5 17.Nf3 Bg4 18.Nxe5 dxe5 19.Qh4+ g5 20.Qxg4 Qh8 21.Qf5+ Ke7 22.Qxe5+ Kd7 23.Qxg5 Qh7 24.Qg4+ Kc6 25.Qh3 Qg7 26.Qg3 Qh7 27.Qh3 Qg7 28.Qe6+ Kc5 29.Qd5+ Kb6 30.Qc4 Rg8 31.g3 Qh7 32.Rb1+ Ka5 33.Qb3 b5 34.Qa3+ Kb6 35.Qb4 Rh8 36.Qxb5 checkmate, Tiny25 - eflatun99, lichess.org, 2021
9.Kd1 Nf6 10.d3 Qxg2 11.Re1 Bxf2 12.Bh6 Qf3+ 13.Re2 Nh5 14.Qf8 checkmate, Littleplayerparis - lizardgeck0, lichess.org, 2020
8...Nf6
Stockfish 14.1 still recommends the Whistler-like 8...Qxe4+, and gives a line which leaves White with an edge: 9.Kf1 b6 10.Qxc7 Nf6 11.d3 Ba6 12.Nd2 Qd5 13.Qg3 Rhe8 14.h4 Kg8 15.c4 Qe6 16.Kg1 Bb7 17.Ne4 Bxe4 18.dxe4 Qxe4 19.Be3 Ng4 20.Rh3 Nxe3 21.Qxe3 Qxc4 22.Qf3 Qe6. Apparently the computer puts its faith in h4-h5 with the idea of opening the h-file for White's Rook.
The text move leaves allows White to protect his e-pawn, stifle Black's play, and remain up a few pawns.
9.d3 d6 10.Qxc7+ Kf8
The relatively better move was 10...Qd7 - can you see why?
11.Qxd6+
This move is fine, but it is lazy, as it misses 11.Bh6+ Kg8 12.Qg7 checkmate.
White now exchanges and exchanges.
11...Qe7 12.Qxe7+ Kxe7 13.Bg5 h6 14.Bxf6+ Kxf6
Being careful should bring home the full point.15.f4 Re8 16.Nc3 Bd7 17.Nd5+ Kg7
A slip.
18.Nc7 Rac8 19.Nxe8+ Rxe8 20.O-O Rf8
21.Rae1 g5 22.f5 Kf6 23.e5+ Kg7 24.g4 h5 25.h3 hxg4 26.hxg4 Rh8 27.Rf2 Bc6
With the delightful threat: 28.e6? Rh1 checkmate.28.Rh2 Rg8 29.Rh5 Kf7 30.Kf2 Be8 31. Rh7+ Kf8 32.d4 Bg6
Another slip, but I suspect the game has lost interest for him.
Now simplest play for White involves advancing the pawns.
33.fxg6 Rxg6 34.e6 Ke8 35.e7 Rg8 36.d5 Rg6 37.Rh8+ Kf7 38.e8=Q+ Kg7 39.Re7+ Kf6 40.Qf7 checkmate