The following game goes mildly along its way, featuring an arcane transposition from a "modern" Jerome Gambit to a Semi-Italian Jerome Gambit. Then, suddenly, the game lurches into deadly waters. And out, again.
Of course, Bill Wall is playing the Jerome.
Wall, Bill - Guest1507051
PlayChess.com, 2019
1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+
4...Kxf7 5.d3
Bill plays a "modern" variation of the Jerome Gambit - one without 5.Nxe5. He decides that sacrificing one piece is enough - for now.
5...h6
Black wants to keep a White piece out of g5. The move is playable, but probably not best.
Bill has faced the stronger 5...Nf6 three times: Wall,B - Richard123, Chess.com, 2010 (1-0, 10); Wall,B - Hovo,D, Chess.com, 2010 (1-0, 23); and Wall,B - Bandera,M, Chess.com, 2010 (1-0, 28).
The move in the game, 5...h6, creates a transposition to the Semi-Italian Jerome Gambit - in this case, 1.e4 e5 2.Nf3 Nc6 3.Bc4 h6 4.d3 Bc5 5.Bxf7+ Kxf7 - and White decides to capture on e5, after all.
6.Nxe5+ Nxe5 7.Qh5+ Ke6
Bill has also faced 7...g6, as in Wall,B - Riichmarj, Chess.com, 2010, (1-0, 29); and 7...Ng6 8.Qd5+ Ke8 9.Qxc5 d6 10.Qc3 Qf6 11.Qxc7 N8e7 12.O-O Kf7 13.Nc3 Be6 14.Qxd6 Rhd8 15.Qg3 Rac8 16.f4 Bd7 17.f5 Nh8 18.e5 Qb6+ 19.Be3 Qxb2 20.Bd4 Nxf5 21.e6+ Bxe6 22.Rxf5+ Bxf5 23.Qxg7+ Ke6 24.Re1+ Kd6 25.Qe7+ Kc6 26.Qc5+ Kd7 27.Re7 checkmate, Wall,B - Guest396164, PlayChess.com, 2017.
8.Qf5+ Kd6 9.f4 Qh4+ 10.g3 Nf3+
Quite a shot! Without d2-d3 for White, and ...h7-h6 for Black, as in the current game, this move leads to a complicated and deadly (for White) variation - see "Repairing A Variation" Part 1, 2, 3 and 4 for a more complete assessment. I recall getting an email from my friend, "Mad Dog", about a Jerome Gambit correspondence game that he figured he was winning, as he had just won his opponent's Queen - alas, it was a Queen sacrifice, and he was ultimately thrashed.
What difference do the "extra" moves make in this case?
11.Kd1 Qd8
Uh, er, never mind.
The real test of the line goes something like this: 11...Ne7!? 12.e5+ (White must force the issue) Kc6 13.Qe4+ d5 (the only move to keep Black in the game) 14.exd6+ Nd5 15.gxh4 (there goes the Black Queen, White's only chance) Bg4 16.h3 (in the original line, "Mad Dog" tried Qa4; in a series of games against the computer program Crafty in 2012, Philidor1792 tried d4, and Crafty tried f5; all to no avail) Bh5 17.c4!? (The White Queen does not have to retreat, as she is protected in this line) Ng5+ (best) 18.Kc2 Nxe4 19.cxd5+ Kxd5 20.dxe4+ Kxd6 21.Nc3 and the game is balanced, as Black's two Bishops counter White's extra, doubled pawn.
analysis diagram
In the current game, Black is temporarily up a couple of pieces, but that situation does not last.
12.Qd5+ Ke7 13.Qxc5+ d6 14.Qf2 Bg4
Black cannot save his Knight, and so falls behind by a pawn or two.
15.h3 Nd4+
Better was 15...Nh2+ 16.hxg4 Nxg4.
16.hxg4 c5
17.g5 Kd7 18.Be3 Qb6 19.Kc1 Ne7
The game remains complicated, but White is clearly better.
20.gxh6 gxh6 21.Nd2 Raf8 22.Nc4 Qc6 23.Bxd4 cxd4 24.Qxd4 Kc8
Things begin to slip away.
25.Nxd6+ Kc7 26.Nc4 b6 27.Qe5+ Kd8 28.Qb8+ Nc8 29.Ne5 Qc7 30.Qxc7+ Kxc7 31.Ng6 Black resigned
The following game is from the second round of the RedHotPawn.com Jerome Gambit tournament. Despite good effort in a difficult variation, White is not able to pry away the full point.
kristjan - procyk
RedHotPawn, 2016
1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+ Kxf7 5.d3 h6
The game has transposed to a Semi-Italian Jerome Gambit line where White temporized with d2-d3, i.e. 1.e4 e5 2.Nf3 Nc6 3.Bc4 h6 4.d3 Bc5 5.Bxf7+ Kxf7.
White now decides on the "classical" second piece sacrifice. It is interesting to note that a first round game, deriver69 - procyk, transposed into the continuation 6.0-0 (0-1, 25).
6.Nxe5+ Nxe5 7.Qh5+ Ke6
Alternatives include:
7...g6 8.Qxe5 Be7 9.Qxh8 Bf6 10.Qh7+ Bg7 11.e5 d6 12.f4 Bf5 13.Nc3 Nf6 14.exf6 Qxf6 15.O-O c6 16.g4 Rh8 17.Qxh8 Bxh8 18.gxf5 gxf5 19.Be3 b5 20.Bxa7 h5 21.Be3 h4 22.a4 d5 23.d4 b4 24.Ne2 Qg6+ 25.Kf2 c5 26.a5 c4 27.a6 h3 28.a7 Qg2+ 29.Ke1 Black resigned, Wall,B - Riichmarj, Chess.com, 2010;
7...Ng6 8. Qxc5 (8.Qd5+ Ke8 9.Qxc5 N8e7 10.f4 Rf8 11.O-O d6 12.Qh5 Kd7 13.Nc3 c6 14.Be3 Kc7 15.b4 Bd7 16.b5 cxb5 17.Nxb5+ Bxb5 18.Qxb5 a6 19.Qb2 Nc6 20.Bb6+ Kb8 21.Bxd8 Black resigned, Wall,B - Ashley, Chess.com, 2010) 8...d6 9.Qe3 Nf6 10.h3 (10.O-O Rf8 11.Nc3 Kg8 12.b4 Ng4 13.Qd4 N6e5 14.Qd5+ Kh8 15.f3 Qh4 16.fxg4 Rxf1+ 17.Kxf1 Qxh2 18.Bb2 Bxg4 19.Ke1 Qg1+ 20.Kd2 Qxg2+ 21.Kc1 Qf1+ 22.Kd2 Nf3+ 23.Ke3 Qh3 24.Qxb7 Ne5+ 25.Kd4 c5+ 26.bxc5 dxc5+ 27.Kxe5 Qh5+ 28.Kd6 Rd8+ 29.Kc6 Rc8+ 30.Kb5 c4+ 31.Kb4 Qe5 32.Rb1 Rb8 33.Nb5 Qxb2+ 34.Rxb2 Rxb7 35.Kxc4 a6 36.a4 axb5+ 37.axb5 White resigned, DREWBEAR 63 - TWODOGS, JGTourney4, ChessWorld, 2009) 10...Bd7 11.Bd2 Bc6 12.Nc3 Rf8 13.O-O-O Kg8 14.f4 Nd7 15.g4 Nxf4 16.Qd4 Ne6 17.Qg1 Ng5 18.h4 Nf3 19.Qg3 Nxd2 20.Rxd2 Ne5 21.Ne2 Rf3 22.Qg2 Qe7 23.Nd4 Rf4 24.g5 Rg4 25.Qe2 hxg5 26.hxg5 Qxg5 27.Qh2 Kf7 28.Rf1+ Ke7 29.Nf5+ Kd7 30.Nd4 a5 31.b3 a4 32.b4 b6 33.Rf5 Qe3 34.Nxc6 Kxc6 35.Kb2 a3+ 36.Kb3 Qd4 37.c3 Qe3 38.Rdf2 Qxd3 39.Rd2 Qc4+ White resigned, ZahariSokolov - laspac, FICS, 2014.
8.Qf5+ Kd6 9.Nc3
Development is a good thing in a gambit, but White might have had more luck with 9.f4. There are only two games with that move in The Database, but White won both.
9...c6
Black also succeeded with 9...a6 10.Bf4 Qf6 11.Bxe5+ Qxe5 12.Qf8+ Kc6 13.f4 Qxc3+ White resigned, jibeng - ehvmc, FICS, 2010.
10.Bf4
Again White goes with develoment. Seen elsewhere was 10.f4 Qf6 11.fxe5+ Qxe5 12.Bf4 Bd4 13.Bxe5+ Bxe5 14.O-O Nf6 15.Rad1 Ke7 16.d4 d6 17.Qg6 Bxh2+ 18.Kxh2 Be6 19.e5 dxe5 20.dxe5 Bf7 21.exf6+ gxf6 22.Qe4+ Kf8 23.Rxf6 Re8 24.Rxf7+ Kxf7 25.Rd7+ Kf6 26.Qh4+ Ke6 27.Rxb7 a6 28.Qc4+ Kd6 29.Qxa6 Rc8 30.Ne4+ Kd5 31.Qd3+ Ke5 32.g3 Rcd8 33.Re7+ Kf5 34.Qf3+ Kg6 35.Qf7 checkmate, ZahariSokolov - mmamaju, FICS, 2014
10...Qf6
11.Bxe5+
Likely better was 11.O-O-O, although the position would still be difficult.
11...Qxe5 12.Qf3 Nf6 13.O-O-O Bd4 White resigned
The ending comes abruptly, but White may have decided that he simply did not have enough compensation for his two pieces. It will take some work to get any kind of attack on the King going.
