Jerome Gambit: Giving the Piece Back Only Begrudgingly

In some Jerome Gambit games, Black returns a sacrificed piece forthwith, as part of his "scientific" defense. In other games, he resists and resists, giving the piece back only very begrudgingly.

Witness the following game. 

Wall, Bill - Piedras
ChessTempo.com, 2019

1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+ 

4...Kxf7 5.Nxe5+ Nxe5 6.Qh5+ Ng6 

7.Qd5+ Ke8 8.Qxc5 d6 9.Qe3 Be6

This move, combined with the placement of the Knight on g6, calls out the advance of White's f-pawn. It is interesting to watch Black wriggle and jiggle and try to have his pieces escape.

10.f4 d5 11.f5 d4 12.Qd3 Nf4 13.Qf1 Qh4+ 14.g3 Qh3 15.gxf4 Qxf1+ 16.Kxf1 

Black has returned the sacrificed piece, and is down a pawn.

16...Bc4+ 17.d3 Ba6 

Calmness returns - but only briefly. 

18.Rg1 Kf7 19.Nd2 Nf6 20.b4 b6 21.Bb2 c5 22.bxc5 bxc5 23.e5 Nd5 

The "Jerome pawns" are on the march. When the Rooks join in, it will be the end of Black's King.

24.e6+ Kf6 25.Ne4+ Ke7 26.Rxg7+ Kf8 27.Rf7+ Kg8 28.Kf2 Black resigned