Jerome Gambit: The Greatest Invention in the Last Century

I stopped by the chessentials website the other day, and read a lot of interesting items. In particular, I enjoyed the thoughtful essay,

In Defence Of Elitism In Chess: 7 Reasons Why Elitism Accusations In Chess Are Vastly Exaggerated

I totally cracked up, however, when I got to the following - with its footnote.

I also believe they are not nearly as prevalent in any of the given fields, as it is sometimes presented. I think a large part of the blame for this eschewed perception goes to the greatest invention in the last century.

The Internet. 12

I checked out the footnote at the bottom of the article

12.Bonus points if you thought “The Jerome Gambit” was the answer. 

Awesome. 

Jerome Gambit: Bishop Opening Trap

I stopped by the Chess Only website the other day. It has a lot of interesting chess content, including instruction about the game, as well as a variety of Openings and Opening Traps. There are also games of the top chess masters.

What caught my eye was the post on the "Bishop Opening Trap (Don't Touch My Bishop!)", featuring 1.e4 e5 2.Bc4 Nc6 3.d3 Na5 Bxf7+. There are six game examples given, and the themes in the game should be familiar to Jerome Gambit (1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+) players.

I have looked at the line in the early blog posts "Eric Schiller Doesn't Play the Jerome Gambit" and "Not Playing the Jerome Gambit Either". They are worth checking out for some background on the opening.

Here is short, violent affair presented at Chess Only.

Boros, Laszlo - Saller, Imre

Hajduboszormeny op, 1995

1.e4 e5 2.Bc4 Nc6 3.d3 Na5 4.Bxf7+ 

4...Kxf7 5.Qh5+ Ke6 

6.Qf5+ Kd6 7.d4 Qf6 8.dxe5+ Qxe5 9.Bf4 Black resigned

Ouch.

Jerome Gambit: Everywhere

The Jerome Gambit (1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+ ) seems to be everywhere these days. Check out the game recently presented at TikTok. It features a very nice and deadly attack on the enemy King. The notes are by the winner. I have added the diagrams.

iamtheteacher - Maxgorlv1

3 0 blitz, DailyChess.com, 2020

1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+ 

The Jerome Gambit is a highly dubious line that involves sacrificing a piece for center control.

4...Kxf7 5.Nxe5+ Nxe5 6.Qh5+ Ke6 

7.f4 Nc6 8.Qxc5 Nf6 9.Nc3 

White's strategy is very simple, push the pawns and throw pieces at the king.

9...d6 10.Qc4+ Ke7 11.d4 a6 12.O-O Bd7 13.e5 Ne8 

White can exploit the fact that Black's king is stuck in the centre of the board.

14.f5 dxe5 15.dxe5 Nxe5 16.Re1 Kf6 

Eventually I sacrificed the exchange for a king hunt that led to mate.

17.Rxe5 Kxe5 18.Qd5+ Kf6 19.Ne4+ Ke7 20.Bg5+ Nf6 21.Nxf6 gxf6 22.Re1+ Kf8 23.Bh6 checkmate

Jerome Gambit: Quite Something

There is an old phrase, "to damn with faint praise", which means to evaluate something, not as "fantastic" or "terrific" or "amazing", but, say, as "that's... uh... nice".

A while back I visited the online site of Australian Grandmaster David Smerdon, and commented on both his latest book, and my current fascination.

GM Smerdon was kind enough to respond.

Rick Kennedy says:

June 30, 2020 at 12:42 am

GM Smerdon,

I am working my way through your fascinating The Complete Chess Swindler, a topic that greatly appeals to me, from both a psychological perspective and as a matter of survival: I have been researching and playing the worst chess opening ever, the Jerome Gambit (1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+), for a couple of decades, and have come to realize that any success whatsoever has been due to swindles. (I immediately apologize to the ghost of Frank Marshall and other masters, living and dead.)
Many thanks for your hard work.

David Smerdon says:

September 24, 2020 at 1:33 pm

Hi Rick. I recently came across the Jerome Gambit on YouTube. It’s….quite something!

Jerome Gambit: Daily Chess

I enjoyed checking out the Jerome Gambit tournament played in September 2020 at the DailyChess site.

Players bramble, Greg Williams, Jim Dandy, karlconroy, and Norfolk and Good battled it out.

Greg Williams, karlconroy, and Norfolk and Good each finished the first round with 5 wins, and advanced.

In the second round, karlconroy prevailed with 2 more wins, giving him the top score.

Well played, all. 

I have added the games to The Database.

Jerome Gambit: Extremely Rare

Stumbling onto the simplifychess website, I discovered the following entry for the Jerome Gambit

The Giuoco Piano: Jerome gambit is extremely rare and occurs in less than 1 in 10,000 games. From the data, you can expect that White will only have a 39.13% chance of winning, while Black should have a very high 60.87% chance of winning. Since most players have probably never seen this opening and because White has such a low expected chance of winning, it may be well worth it to keep this variation in your back pocket. If you are Black you should have a significant edge and will probably catch your opponent off guard.

Fascinating. 

I do not know the reference database for the above statistics, but I checked my Big Database (2016) and there were 10 Jerome Gambits out of 6,466,290 games: 0.00000154648, far less common than the above, by an order of magnitude. On the other hand, White scored 3 - 5 -2, which is 40%, very much in tune with the above.

No wonder the Jerome Gambit often surprises the defender.

Jerome Gambit: Keep Up, or Lose on Time

angelcamina (you have seen his games on this blog before) likes to play the Jerome Gambit (1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+) at bullet speed - one minute per game, no increment.

His opponents sometimes just lose to the strength of the attack. Other times, they work to "solve" the Jerome, but this takes time off their clock, so they slip and drop material and lose. Or, they simply run out of time. 

Here is a recent game, with a couple in the notes, to see how it's done.

angelcamina - chessgenius71

1 0 bullet, lichess.org, 2021

1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+ 

4...Kxf7 5.Nxe5+ Nxe5 6.Qh5+ Ng6

Or 6...Kf8 7.Qxe5 Qe7 8.Qf4+ Ke8 9.Qxc7 (risky but thought-provoking) Bxf2+ (Unnecessary) 10.Kxf2 Nf6 11.d3 Ng4+ 12.Kg3 h5 13.h4 Rf8 14.Bg5 Nf6 15.Nc3 d6 16.Qxe7+ (exchanging Queens does not fix things) Kxe7 17.Nd5+ Ke8 18.Nc7+ Kd7 19.Nxa8 Nxe4+ 20.dxe4  b6 21.Nxb6+ axb6 22.Rhf1 Bb7 23.Rxf8 Black resigned, angelcamina - mistrustful, lichess.org, 2021

7.Qd5+ Ke8 8.Qxc5 Qe7 9.Qe3 d5 

A good idea, both helping development and attacking (thus, limiting) White's pawn center.

10.d3 dxe4 11.dxe4 Nf6 12.f3  

He has also played 12.Nc3 c6 13.O-O Kf7 14.f4 Re8 15.e5 Nd7 16.b3 Qc5 17.Qxc5 Nxc5 18.Ba3 b6 19.Bxc5 bxc5 20.Ne4 Rd8 21.Rae1 Rd2 (ouch) 22.Nxd2 Ba6 23.Rf2 Rd8 24.Ne4 Rd4 25.Nd6+ Ke6 (understandable, but it was safer to retreat) 26.f5+ Kd5 27.fxg6 hxg6 28.Nf7 g5 29.Nxg5 Re4 30.Rxe4 White won on time, angelcamina - Rakammerer80, lichess.org, 202l. 

12...Be6 13.b3 Kf7 14.Ba3 Qd7 15.Nd2 Qb5 16.O-O-O Rad8 

17.c4 Qa5 18.Kb2 Rd7 19.e5 Nxe5 20.Ne4 Rxd1 21.Ng5+ Kg6 22.Rxd1 

Black has done very well, but it does not matter, as here White won on time. Bullet chess can be cruel.