When White Equalizes in the Jerome Gambit, He Has the Advantage

Knowing the Jerome Gambit well gives the attacker several advantages, including the ability to "make something out of nothing" because of his understanding of typical play. Too, there is a danger for Black that, having reached an "even" position, he might lessen his attention - and invite disaster.

Wall, Bill - Ryusak
lichess.org, 2016

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 Nf6 9.Nc3

9.f4 was seen as early as Jerome,A - Shinkman,W, Iowa,  (1/2-1/2, 42).

The more restrained 9.f3 was seen in  Wall,B - Guest903719, PlayChess.com 2013 (1-0, 47).

More recently Bill has tried 9.Bf4 Be6 10.Nc3 Re8 11.Rad1 Nc6 12.Qd2 Bg4 13.f3 Bh5 14.Nd5 Nxd5 15.Qxd5+ Kf8 16.Qxh5 Kg8 17.Qd5+ Kh8 18.c4 Nb4 19.Qb5 a5 20.a3 Nc2 21.Rf2 Qf6 22.Bg5 Nd4 23.Qxe8+ Rxe8 24.Bxf6 Nxf3+ 25.Rxf3 gxf6 26.Rxf6 Rxe4 27.c5 Re2 28.Rf7 Rxb2 29.cxd6 Kg8 30.Rxc7 Kf8 31.d7 Black resigned, Wall,B - Guest3687203, PlayChess.com, 2015.

9...b6

One of a number of defenses that Bill has faced:

9...Re8 10.Bg5 (10.f4 Nc6 11.Qd3 Kg8 12.Bd2 Kh8 13.f5 Ne5 14.Qd4 c5 15.Qf2 Rf8 16.Rae1 Nfg4 17.Qg3 Qb6 18.b3 c4+ 19.Kh1 cxb3 20.Nd5 Qd8 21.axb3 b6 22.c4 Bb7 23.Nf4 Nf6 24.Ne6 Qe7 25.Nxf8 Rxf8 26.Bg5 Qf7 27.Bxf6 Qxf6 28.Re2 g6 29.Kg1 a5 30.Qf2 a4 31.bxa4 Nxc4 32.fxg6 Qxf2+ 33.Rfxf2 Rxf2 34.Kxf2 hxg6 35.Rc2 Ba6 36.Kg3 Kg7 37.Kf4 Kf6 38.h4 Ne5 39.Rd2 Nd3+ 40.Ke3 Ke5 41.Rxd3 Black resigned, Wall,B - Ferreira,J, lichess.org 2016) 10...h6 (10...Kg8 11.f4 (11.Nd5 Be6 12.Bxf6 gxf6 13.Rad1 c6 14.Nf4 Qb6 15.Qc3 Qc7 16.Rd4 c5 17.Rd2 Rad8 18.Rfd1 Qe7 19.f3 b6 20.b3 Ng6 21.Qe3 f5 22.Nxg6 hxg6 23.exf5 gxf5 24.Qh6 Qg7 25.Qxg7+ Kxg7 26.Rxd6 Rxd6 27.Rxd6 Kf6 28.c4 Ke5 29.Rd2 a6 30.Kf2 b5 31.cxb5 axb5 32.Re2+ Kf6 33.Kg3 c4 34.bxc4 bxc4 35.h4 c3 36.Rc2 Rc8 37.Kf4 Bxa2 38.Rc1 c2 39.Ke3 Bb3 40.Kd4 f4 41.Kd3 Rd8+ White resigned,Wall,B - Guest4809124, PlayChess.com 2013) 11...Nc6 12.Qa4 (12.Qd3 Nb4 13.Qc4+ Be6 14.Qxb4 b6 15.Rae1 c5 16.Qb5 d5 17.e5 d4 18.exf6 a6 19.Qc6 Bd7 20.Qd5+ Kh8 21.fxg7+ Kxg7 22.Bxd8 Black resigned, Wall,B - Foman, Chess.com 2010) 12...Bd7 13.Rae1 h6 14.Bh4 Ne5 15.Qb3+ Nf7 16.e5 dxe5 17.fxe5 Be6 18.Qa4 Bd7 19.Qd4 g5 20.exf6 gxh4 21.Rd1 Nd6 22.Qd3 Bf5 23.Rxf5 Nxf5 24.Qxf5 Qxd1+ 25.Nxd1 Re1+ 26.Kf2 Rxd1 27.Qg6+ Kf8 28.Qg7+ Ke8 29.Qe7 checkmate, Wall,B - U80, PlayChess.com, 2016) 11.Bh4 c5 (11...Be6 12.f4 c5 13.Qa4 Ng6 14.Bxf6 gxf615.f5 b5 16.Qxb5 Bd7 17.fxg6+ Kxg6 18.Qd3 Kg7 19.Qxd6 Rc8 20.Rad1 Rc7 21.Qg3+ Kh7 22.Nd5 Rc6 23.Nxf6+ Rxf6 24.Rxf6 Qxf6 25.Rxd7+ Black resigned, Wall,B - Guest1561957, PlayChess.com 2014) 12.Qd2 Be6 13.Rad1 Nc4 14.Qc1 Qb6 15.b3 Ne5 16.Bxf6 gxf6 17.f4 Ng4 18.f5 c4+ 19.Kh1 Nf2+ 20.Rxf2 Qxf2 21.fxe6+ Rxe6 22.Rf1 Qd4 23.Qxh6 Qxc3 24.Qh7+ Ke8 25.Qg8+ Kd7 26.Qxa8 cxb3 27.Qxb7+ Qc7 28.Qxc7+ Kxc7 29.cxb3 Rxe4 30.Kg1 Re6 31.h4 d5 32.h5 Kd6 33.g4 Ke7 34.Kf2 Kf7 35.Rc1 Re7 36.Kf3 d4 37.Rc6 Rd7 38.Ke2 d3+ 39.Kd2 Rd4 40.Rc7+ Kg8 41.Rxa7 Rxg4 42.Kxd3 Rh4 43.a4 Rxh5 44.a5 Rb5 45.Kc4 Rb8 46.a6 f5 47.Rb7 Ra8 48.a7 Black resigned, Wall,B - Guest5111265, PlayChess.com 2014;

9...c6 10.f4 Ng6 (10...c5 11.Qf2 Neg4 12.Qd2 Rf8 13.h3 Nh6 14.e5 Nh5 15.g4 Ng3 16.Rf3 Qh4 17.Kg2 Bxg4 18.hxg4 Nxg4 19.Qd5+ Ke7 20.Qxb7+ Ke6 21.Qd5+ Kf5 22.Qd3+ Ke6 23.Qxd6+ Kf7 24.Qd5+ Kg6 25.Rxg3 Qh2+ 26.Kf3 Qf2+ 27.Kxg4 Rxf4+ 28.Bxf4 h5+ 29.Kh4+ Kh7 30.Qe4+ g6 31.Qxg6+ Kh8 32.Qg7 checkmate, Wall,B - Guest708676, PlayChess.com, 2016) 11.Be3 Re8 12.Rad1 Bg4 13.Qc4+ Kf8 14.Rxd6 Nxe4 15.Rxd8 Raxd8 16.Nxe4 b5 17.Bc5+ Ne7 18.Bxe7+ Rxe7 19.Qxc6 Be2 20.Re1 Bc4 21.b3 Bd5 22.Qc5 Rdd7 23.Ng5 Rc7 24.Qd6 Rcd7 25.Qb8+ Black resigned, Wall,B - Uscanac, lichess.org, 2016;

9...c5 10.Qd2 Nc4 11.Qd3 Be6 12.f4 Bg4 13.Qxc4+ Be6 14.Qb5 Black resigned, Wall,B - TryToBeg, lichess.org, 2016; and

9...Rf8 10.f4 Nc6 11.Qd3 Kg8 12.Bd2 Be6 13.Rad1 a6 (13...Bf7 14.Nd5 Nxd5 15.exd5 Bg6 16.f5 Ne5 17.Qh3 Be8 18.Rf4 Qf6 19.Qg3 Bb5 20.a4 Bd7 21.Rdf1 Rac8 22.b3 Rce8 23.c4 b6 24.Bc3 Rf7 25.h3 c6 26.dxc6 Bxc6 27.Rd1 Qe7 28.Bb4 Rf6 29.Kh2 Bb7 30.Qf2 g6 31.Qg3 Kh8 32.Rfd4 Rxf5 33.Rxd6 Rg5 34.R6d2 Rxg3 35.Bxe7 Rxb3 36.Bf6+ Kg8 37.Rd8 Kf7 38.Rxe8 Kxf6 39.Rf1+ Kg5 40.Rxe5+ Kh6 41.Rf7 Ba6 42.g4 Rb2+ 43.Kg3 Rb3+ 44.Kf4 g5+ 45.Rxg5 Bxc4 46.Rf6 checkmate, Wall,B - Anonymous, lichess.org, 2016) 14.Nd5 Bg4 15.Rde1 Bh5 16.Bc3 Nxd5 17.exd5 Ne7 18.f5 Bf7 19.Qd4 Black resigned, Wall,B - Anonymous, lichess.org, 2016.

10.f4 Ned7 11.e5 dxe5 12.fxe5 Nxe5 13.Qxe5 Re8

Black has returned the sacrificed piece for what he believes is an equal game.

He has forgotten the old saying: When White equalizes in the Jerome Gambit, he has the advantage. How else to explain the quick end to the game?

14.Qg3 Qd4+ 15.Kh1 Ba6 16.Bh6 

A nice sacrifice that moves the advantage in White's direction.

16...gxh6 17.Rad1 Qg4 

Black had to try 17...Bxf1 18.Rxd4 Bxg2+, although White would still have an edge after 19.Kg1!?

Now Black loses his Queen, and checkmate is forced.

18.Rxf6+ Kxf6 19.Qxg4 Black resigned

Jerome Gambit: Old McDonnell

Kevin Sheldrick ("Cliff Hardy") sends one of his latest Jerome Gambits. He gets into trouble, but he calls upon his creativity and his "Jerome pawns" save him. The comments are mostly Kevin's. I have added a few diagrams and some notes in blue - Rick

Old McDonnell Had a Pawn Storm

A kingside pawn storm features in many Jerome Gambit games, as is clearly evident in the games on this blog. In that vein, I recently played a Jerome Gambit game that reminded me somewhat of a famous position from an old game between two classic masters, Alexander McDonnell and Louis-Charles de La Bourdonnais in London in 1834. These were two of the strongest players in the world at the time and the final position in that game I have heard being referred to as, arguably, the most famous position in chess history.

  

La Bourdonnais, as black, has just played 37...e2, and so McDonnell resigned in a lost position, despite being the player who currently has a queen on the board.

My game: 

dsjkljdkdjkf - beba buba beba542

15 0, instantchess.com, 25/1/17

1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+ Kxf7 5.Nxe5+ Kf8 6.Qh5??

6.Nxc6! would have been better. (See gfdgfd - leleos
InstantChess.com, 2016.)

6...Nxe5 7.Qxe5 d6 8.Qg3 Nf6 9.d3 h5 10.Bg5 Bd4?!

The odd-looking 10...Qd7!, blocking his bishop on c8 but breaking the pin on the knight on f6, was best. (10...Be6 was perrypawnpusher - ulisimbolon, Giuoco Piano Thematic, Chess.com, 2016 [0-1, 22])

11.c3 Be5??

11...Bb6 would still leave black with a clear advantage.

12.f4

Old McDonnell had a bishop!

12...h4 13. Bxh4??

13.Qf3! Bg4 14.Qe3 and white will win the trapped bishop on e5, with a winning position.

13...Nh5!

13...Nh5 was good for a slight advantage for black (saves his bishop on e5) but 13...Nxe4! was slightly better than that again

14.Qf2 Bf6 15.Bxf6 Qxf6 16.0-0 Bd7 17.Nd2 Ke7 18.d4 Raf8 19.f5 Kd8 20.Rae1 Qg5 21.Nf3 Qg4 22.h3 Qg3

23.Qxg3?

23.Re3 would yield an approximately equal position.

23...Nxg3 24.Rf2 Rhg8?

24...Re8, attacking the e-pawn, would lead to a winning advantage for black, whereas after 24...Rhg8?, white has a slight advantage.

25.Kh2 Nh5 26.g4 Nf4 27.Kg3??

E - I - E - I - O! I missed the fork.

27...Nd3 28.e5 Nxe1 29.Nxe1 de 30.de Bc6 31.g5 Kc8 32.Kg4 Rd8 33.h4 Rd1 34.Re2 Rgd8?

 

Black is still better but 34...Bb5! 35.Re3 Rd2, with a powerful rook on the seventh rank, would lead to a really crushing position for black.

35.e6

With a push-push here and a push-push there of my e- and f-pawns, I was hoping to pull off a swindle, though 35. h5! (i.e. everywhere a push-push!), with a four-pawn storm, would give me better chances to fluke a win from my bad position.

35...R8d2 36.Rxd2 Rxd2 37.f6 gf 38.gf Bd5 39.Kf5 Rf2+ 40.Ke5 Bxa2 41.f7 Re2+??

41...Kd8! was actually the only winning move for black here.

42.Kf4

Now white has a winning position!

42...Rf2+ 43.Nf3 Bxe6 44.f8=Q+ Kd7 45.Qg7+ Kd6 46.Qd4+ Bd5 47.Qxf2 c6 48.Qxa7 Bxf3 49.Kxf3 and black resigned.

Take care of your "Jerome pawns" and they will take care of you. Wonderful, Kevin!

Your Opponent is Overrated

For my birthday my wife gave me James Schuyler's Your Opponent is Overrated (Everyman Chess, 2016). I appreciate the subtitle: A Practical Guide to Inducing Errors.

I have not gotten into the book, but the text on the back cover is enticing

Which opening does better in practice: the wild, "unsound" and "refuted" Latvian Gambit (1.e4 e5 2.Nf3 f5) or the solid Philidor Defence (1.e4 e5 2.Nf3 d6)? As James Schuyler points out, referring to the definative Megabase, the Latvian Gambit scores higher. 

How can such a discredited opening (and the same story is repeated with other "unsound" openings) do so well? the point is that playing like this throws the opponent off balance, makes them anxious and induces mistakes.Even the very best players recognise the value of discomforting the opponent. Historically, Emanuel Lasker was the master of this approach and his modern day equivalent is world champion Magnus Carlsen. Carlsen frequently employs offbeat openings and his opponents invariably fail to counter them correctly. 

This is the key theme of this book. Schuyler covers all phases of the game and discusses other vital subjects such as harassment, meterial imbalance, time management, surprise moves, unusual ideas, provocative play, manoeuvers and recovering from bad positions.

I am pretty sure that the author "overlooks" an opening as "discredited" as the Jerome Gambit, but I think that it is likely that many of his ideas in the book will relate to playing the Jerome! 

Jerome Gambit: Different Route, Same Destination

Once again, White's Queen and the "Jerome pawns" work together to harass Black and his King. Checkmate is probably a relief.

Wall, Bill - Lawliet, Lucas
lichess.org, 2016

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

4...Kxf7 5.Nxe5+ Nxe5 6.d4

6...Bb4+ 7.c3 Bxc3+ 8.Nxc3 

We recently saw 8.bxc3 in Wall, Bill - PassCapture. lichess.org, 2016 (1-0, 22).

8...Nc6 9.O-O

Queenside castling was seen after the direct 9.d5 Ne5 10.f4 Ng6 11.h4 Nxh4 12.Qh5+ g6 13.Qxh4 Qxh4+ 14.Rxh4 Nf6 15.e5 Ne8 16.Be3 c6 17.O-O-O d6 18.e6+ Ke7 19.g4 Nf6 20.f5 gxf5 21.gxf5 cxd5 22.Bg5 a6 23.Nxd5+ Kf8 24.Bxf6 Rg8 25.Rxh7 b5 26.Be7+ Ke8 27.Nf6 checkmate, Wall,B - ChessFlower, PlayChess.com, 2012.

9...Nf6

Or 9...Qf6 10.e5 Qg6 11.Qf3+ Ke8 12.Nb5 Kd8 13.Qf8+ Qe8 14.Qxe8+ Kxe8 15.Nxc7+ Ke7 16.Nxa8 Nxd4 17.Bg5+ Ke6 18.Nc7+ Kxe5 19.Rae1+ Kd6 20.Bf4+ Kc6 21.Rc1+ Kb6 22.Nd5+ Kb5 23.Rxc8 Ne6 24.a4+ Kxa4 25.Ra1+ Kb3 26.Be5 Black resigned, Wall,B - Caynaboos, FICS, 2011.

10.d5 Ne5 11.f4 Ng6 12.e5 Ne8

13.Qe2 Rf8 14.f5 Ne7 15.Bg5 d6 16.f6 gxf6 17.exf6 Ng8 18.Qh5 checkmate

Play What You Know; Know What You Play

I wonder if White's opponent in the following game expected to catch him by surprise by playing a wild counter gambit? If so, then perhaps he was taken aback by the "Jerome treatment" of the opening. We have seen this kind of thing before. As the notes show, Bill Wall plays what he knows.

Wall, Bill - Takra
lichess.org, 2016 

 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nd4 

The Backburne Shilling Gambit.

4. Bxf7+ 

The Blackburne Shilling Jerome Gambit.

4...Kxf7 5.Nxe5+ Ke8 6.Qh5+ g6

7.Nxg6 hxg6 

Previously:

7...Nf6 8.Qe5+ Ne6 9.Nxh8 Bg7 10.O-O Qe7 11.f4 Ng4 12.Qh5+ Black resigned, Wall,B - DSLC, FICS, 2013; 

7...Qf6 8.Nxh8+ Kd8 9.Nf7+ Ke7 10.d3 Nxc2+ 11.Kd1 Qxf2 12.Bg5+ Nf6 13.Nd2 Nxa1 14.e5 Bg7 15.Bxf6+ Bxf6 16.exf6+ Qxf6 17.Re1+ Kf8 18.Ng5 d6 19.Re8+ Black resigned, Wall,B - Sharkia,A. Chess.com, 2010; 

7...Nxc2+ 8.Kd1 Nf6 (8...Nxa1 9.Nxh8+ Ke7 10.Qe5 checkmate, Wall,B - Apple69, Chess.com, 2010) 9.Qe5+ Be7 10.Nxe7 Qxe7 11.Qxe7+ Kxe7 12.Kxc2 Nxe4 13.Re1 d5 14.d3 Bf5 15.f3 Black resigned, Wall,B - Schlier,A, Chess.com, 2010.

8.Qxg6+ Ke7 9.Qg5+ Ke8 

9...Nf6 10.Qc5+ Kf7 (10...d6 11.Qxd4 d5 12.e5 Ne4 13.d3 b6 14.dxe4 c6 15.Bg5+ Black resigned, Wall, Bill - Guest5170841, PlayChess.com, 2015) 11.Qxd4 Qe8 12.Nc3 c5 13.Qe3 Qe5 14.h3 Bh6 15.Qf3 Qf4 16.Qe2 d6 17.d4 Qh4 18.Bxh6 Qxh6 19.dxc5 dxc5 20.e5 Nh5 21.Qc4+ Be6 22.Qxc5 Black resigned, Wall,B - NN, lichess.org, 2016.

10.Qe5+ Be7 

10...Ne6 11.Qxh8 Qg5 12.O-O Nf4 13.g3 d6 (13...Ne2+ 14.Kg2 Nf4+ 15.Kh1 Qg4 16.f3 Black resigned, Wall,B - Creel,A, Chess.com, 2010) 14.Nc3 Nh6 15.d3 Ne2+ 16.Nxe2 Black resigned, Wall,B - Amoex, PlayChess.com, 2013. 

11.Qxh8 Black resigned

Jerome Gambit Rematch

The following rematch (see "Jerome Gambit: More Pie, Please ") shows Black, once again, ready for his opponent's Jerome Gambit.

Alas, he does not appear to have been completely ready for his opponent.

Wall, Bill - PassCapture
lichess.org, 2016

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

4...Kxf7 5.Nxe5+ Nxe5 6.d4 Bb4+

We have seen this line before, most recently in Wall, Bill - NN
lichess.org, 2016 (1-0, 18). It is one of a number of ways that Black returns one of the two sacrificed pieces.

7.c3 Bxc3+ 8.bxc3 Ng6 

As I have previously written:

The Knight... could also go the other way, although Bill has some experience with that plan as well: 8...Nc6 9.d5 (9.O-O Qf6 10.e5 Qg6 11.Qf3+ Ke8 12.Nb5 Kd8 13.Qf8+ Qe8 14.Qxe8+ Kxe8 15.Nxc7+ Ke7 16.Nxa8 Nxd4 17.Bg5+ Ke6 18.Nc7+ Kxe5 19.Rae1+ Kd6 20.Bf4+ Kc6 21.Rc1+ Kb6 22.Nd5+ Kb5 23.Rxc8 Ne6 24.a4+ Kxa4 25.Ra1+ Kb3 26.Be5 Black resigned, Wall,B-Caynaboos, FICS. 2011) 9...Ne5 10.f4 Ng6 11.h4 Nxh4 12.Qh5+ g6 13.Qxh4 Qxh4+ 14.Rxh4 Nf6 15.e5 Ne8 16.Be3 c6 17.O-O-O d6 18.e6+ Ke7 19.g4 Nf6 20.f5 gxf5 21.gxf5 cxd5 22.Bg5 a6 23.Nxd5+ Kf8 24.Bxf6 Rg8 25.Rxh7 b5 26.Be7+ Ke8 27.Nf6 checkmate, Wall,B - ChessFlower, PlayChess.com, 2012.

9.e5 Qe7 10.O-O Nh6 11.Bxh6 gxh6 

This exchange is often a good idea, weakening Black's King's position and creating targets for White's Queen.

12.f4 d6 13.f5 Nh4 14.Qh5+ Kf8 15.f6 Qe6

The pesky "Jerome pawns" (backed by the Rook) work well with the White Queen.

16.Qxh6+ Ke8 17.f7+ Kd7 18.Qxh4 Rf8 19.Rf6 Qe7 

(It is useful, once again, to point out how Black's light-squared Bishop remains on its home square, and, in turn, Black's Queenside Rook. White's development rules the day.)

20.Na3 dxe5 21.dxe5 Qxa3 22.Rd1+ Black resigned

Checkmate comes quickly after 22...Qd6 23.Rfxd6+ cxd6 24.Qf6.

Jerome Gambit: A Reasonable Line

The Jerome Gambit is full of "reasonable" lines of play for Black, and the defender has to be aware - is it a playable reasonable line, or an unplayable reasonable line; and then, more importantly, what comes next?

Wall, Bill - TenAndOnly10
lichess.org, 2016

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

4...Kxf7 5.Nxe5+ Nxe5 6.d4 Bb6

This seems like a reasonable move, although not frequently played in comparison with other lines. It shows up in 111 games in The Database, where Black scores 50%. (Compare that to the 1,528 games with the same moves up until 6.d4, where Black scores 48%.)

Of course, any chance of catching Bill by suprise is likely to be small.

7.dxe5 d6

Alternatives:

7...Qh4 8.Qf3+ Ke8 9.Nc3 Ne7 (9...Bxf2+ 10.Qxf2 Qxf2+ 11.Kxf2 Nh6 12.Nd5 Ng4+ 13.Kg3 Kd8 14.Bg5+ Nf6 15.exf6 h6 16.fxg7+ Ke8 17.gxh8=Q+ Kf7 18.Rhf1+ Kg6 19.Qxh6 checkmate, Wall,B - Shillam, lichess.org, 2016) 10.g3 Qh3 11.Be3 d6 12.Bxb6 cxb6 13.exd6 Ng6 14.Nd5 Qd7 15.Nc7+ Kd8 16.Nxa8 Qxd6 17.Rd1 Ne5 18.Rxd6+ Ke7 19.Qc3 Kxd6 20.Qd4+ Ke6 21.Nc7+ Kf7 22.Qxe5 Rd8 23.Nb5 Bg4 24.Qf4+ Kg8 25.Qxg4 a6 26.Qe6+ Kh8 27.Nd6 Rb8 28.Nf7+ Kg8 29.Nh6+ Kh8 30.Qg8+ Rxg8 31.Nf7 checkmate, Wall,B - Itboss, lichess.org, 2016; 

7...Qe7 8.Qf3+ Ke8 9.Nc3 Qxe5 10.O-O Nf6 11.Bf4 Qh5 12.Qg3 d6 13.Qxg7 Rf8 14.Nd5 Qf7 15.Bh6 Nxd5 16.Qxf8+ Qxf8 17.Bxf8 Kxf8 18.exd5 Bf5 19.c3 Re8 20.Rfe1 Be4 21.Rad1 Kf7 22.Kf1 Re5 23.f3 Bg6 24.Rxe5 dxe5 25.Ke2 e4 26.b4 exf3+ 27.Kxf3 Bh5+ 28.g4 Bg6 29.c4 a6 30.d6 cxd6 31.Rxd6 Bb1 32.Rxb6 Bxa2 33.Rxb7+ Ke6 34.Rb6+ Kd7 35.c5 Black resigned, Wall,B - NN, lichess.org, 2016.

8.O-O Be6 9.Qf3+ Ke8 10.Nc3 a6 11.Be3 dxe5

For now White has only one pawn for his sacrificed piece, but Black's uneasy King comes close to making up the rest of the compensation.

12.Qh5+ Bf7 13.Qxe5+ Qe7 14.Qxg7 Qf6

15.Bh6 Bd4 16.e5 Qg6

This move allows White's pieces to become troublesome - enough so that Stockfish 8 suggests instead that Black give back the exchange with 16...Qxh6 17.Qxh8 Rd8 and then exchange some more pieces, e.g. 18.Ne4 Qg6 19.c3 Qxe4 20.cxd4 Bd5 21.Qg7 Ne7 22.Rfe1 Qg6 23.Qxg6+ hxg6 where White only has an edge.

17.Qf8+ Kd7 18. Qxa8 Qxh6

Black returns the exchange in his own way. The difference is that he is not now as equipped to protect his King.

19.Rfd1 c5 20.Qxb7+ Ke8 21.Qb8+ Ke7 22.Ne2 Bh5

23.Nxd4 Bxd1

A final slip.

24.Nf5+ Black resigned

A Quick Jerome Gambit Lesson

Bill Wall has encouraged others to play the Jerome Gambit. The following game is between a friend of his - a teacher - in St. Paul and a student. It is a good example of a stronger player giving "Jerome Gambit odds" and the game is good source material for understanding about attack and defense.

teacher - student
Minnesota, 2017

1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+ 

White will offer a couple of pieces. Can Black defend?

4...Kxf7 5.Nxe5+ Nxe5 6.Qh5+ Ng6 

A common, reasonable defense - Black removes one piece from the line of fire, and returns the other, a time-honored recipe for dealing with a gambit. White has to be pleased, however, as Black has side-stepped some of the sharper, more challenging defenses.

7.Qd5+ Kf6

Stockfish 8 sees this move (at 30 ply) as about 1/4 pawn worse than the top alternatives, 7...Kf8 and 7...Ke8; but the text allows a certain amount of mischief to wander in - starting with White's next move.

8.d4

A stranger to the Jerome has to wonder - why is White again refraining from capturing the Bishop?

The piece is doomed, whether it sits or moves. White is giving some misdirection: the open c1-g5 diagonal is the reason behind his play.

8...Bb4+ 9.c3 Ba5

The Bishop is safe - but the King is not. Necessary was for the monarch to retreat along the d8-h4 diagonal, when the worried-about piece will fall after all.

10.Bg5 checkmate

Jerome Gambit: The Improved Fork Trick

Next to the "I have never seen this before!" reaction of some players defending against the Jerome Gambit, the "Oh, this looks familiar!" has to be an equally frequent response. There is always the risk, however, of moving too quickly and falling into an "improved" Fork Trick, as Bill Wall shows in the following game. 

Wall, Bill - Vicher
lichess.org, 2016

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

4...Kxf7 5.Nxe5+ Nxe5 6.d4 Bd6

This position has a resemblance to that of the "fork trick", and that may be the reason Black opted to move the Bishop where he did. However, the placement of his King makes for a significant difference in the play White can develop.

7.dxe5 Bxe5

As planned, but transforming a roughly equal position to one definitely better for White. (Omigosh! How did that happen?? Black had a won position after 5 moves!)

8.Qd5+ Kf6

Yes, Bill has been here before: 8...Kf8 9.Qxe5 d6 (9...Qe7 10.Qf4+ Nf6 11.Nc3 d6 12.O-O Qe5 13.Qxe5 dxe5 14.f4 exf4 15.Bxf4 Ne8 16.Bd6+ Kg8 17.Rf8 checkmate, Wall,B - Guest539122, PlayChess.com, 2015) 10.Qd4 (10.Qb5 Nf6 11.Nc3 c6 12.Qd3 Be6 13.Bg5 h6 14.Bh4 g5 15.Bg3 Ke7 16.O-O-O Ne8 17.f4 g4 18.Bh4+ Nf6 19.e5 dxe5 20.Qg6 Qf8 21.fxe5 Black resigned, Wall,B - NN, lichess.org, 2016) 10...Nf6 11.O-O c5 12.Qd3 Bd7 13.Bf4 a6 14.Bxd6+ Kf7 15.e5 Bb5 16.c4 Black resigned, Wall,B - Guest5856753, PlayChess.com, 2016.

9.f4 Qe7

Or 9...c6 10.Qxe5+ Kf7 11.O-O Qe7 12.Nc3 d6 13.Qh5+ g6 14.Qe2 Nf6 15.e5 Nd5 16.Nxd5 cxd5 17.Qb5 dxe5 18.fxe5+ Kg7 19.Qxd5 Re8 20.c3 Qxe5 21.Qf7+ Kh8 22.Bg5 Qxg5 23.Qxe8+
Kg7 24.Qf8 checkmate, Wall,B - Neilson,C, Melbourne, FL, 2016.

Or 9...Bd6 10.Qg5+ Kf7 11.Qxd8 Black resigned, Wall,B - NN, lichess.org, 2016.

10.fxe5+ Qxe5

11.Rf1+ Kg6 12.Qf7 checkmate