Most of the Time

If you are facing Bill Wall and the Jerome Gambit, it will not do to make good moves most of the time. You have to make good moves all the time - or you will lose, most of the time. The following game is a good example.

Wall,B - Guest4644930
PlayChess.com, 2014

1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+

4...Kxf7 5.Nxe5+ Nxe5 6.Qh5+ Kf8

The Jerome Gambit, Jerome variation, first outlined in the Dubuque Chess Journal, July 1874.

7.Qxe5 Qe7

After 7...d6, three of Bill's games later transposed into the current game: Wall,B -GoldCoinCollector, Chess.com 2010 (1-0, 17); Wall,B - GuestZCLK, FICS, 2011 (1-0, 15); and Wall,B - Schichua,S, FICS, 2013 (1-0, 22). 

8.Qf4+ Qf6 9.Qg3 d6 10.0-0 

Instead, 10.Nc3 Ne7 11.0-0 was Wall,B - Josti, PlayChess.com, 2013, (1-0, 26), while 10.c3 was seen in Wall,B - Guest340293, PlayChess.com, 2012, (1-0, 41). 

10...Nh6 11.c3 Bd7 12.d4 Bb6 13.Nd2 Nf7 14.Nc4 Ke7 15.a4 Rae8 

Black had defended well, and plans on castling-by-hand on the Queenside, as well as returning a piece for some pawns. All well and good, but, as things turn out, more prudent would have been the preventative 15...a5,even at the cost of having his pawn structure broken up. 

16.a5 Bxd4 17.cxd4 Qxd4 18.b3 Kd8 19.e5 

Uncomfortable. Black is doing everything "right", yet this move upsets him. He defends by further extracting his King from the center, while 19...Nxe5 should have kept the game about even.

19...Kc8 20.Bb2 Qg4 21.Qc3 Nxe5

Now this falls to a tactical shot.

22.Nxd6+ Kb8 23.Nxe8 Rxe8 24.Rfe1 Bc6 25.Qg3 Qb4 26.Bxe5

Black resigned