Thursday, August 24, 2023

Jerome Gambit: Those Who Forget



Readers of this blog are very familiar with Yury  V. Bukayev, for his many thoughtful, creative and researched contributions.

The following game - not a Jerome Gambit (1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+) this time, but with Jerome qualities - is a successful second battle with Bxf7+ for Yury.


Yury_V_Bukayev - WaleraG

30 0, lichess.org, 2023

1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.d4 exd4 

Here we have a Two Knights Defense.

5.e5 Ng4 6.O-O Na5 

It is possible that the Russian chess author Valery P. Golshev had forgotten the lessons of the earlier  Yury_V_Bukayev - WaleraG 30 0, Chess.com, 2021 (1-0, 24). Different opening, after all. Same dangerous theme: Bishop sacrifice at f7. But in contrast with that game, now the blow Bxf7+ isn't a handicap, it is the best move, it leads to White's advantage.

7.Bxf7+ Kxf7 8.Ng5+ Kg8 


There is no safety to be found.

9.Qf3 Nf6 10.exf6 d5 11.f7 checkmate


Delightful! Pawn power!


Wednesday, August 23, 2023

Jerome Gambit: Does Not Require A Serious Defense



One reason that club players like playing the Jerome Gambit (1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+) is that their opponents can draw the wrong conclusions about the opening.

What is this? the defender might think. I have never seen this attack before. It must be wrong.

All that is good and right, as far as it goes: the Jerome is a "refuted" opening. But then the thinking often goes one step further.

Since this is not a serious attack, it does not require a serious defense.

And this is how we wind up with games like the following.

Of course, we also have to make allowances for the fact that it was a 1-minute game, something that does not always allow deep analysis.


angelcamina - LeBuchs

1 0 bullet, lichess.org, 2023

1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+ 

4...Kxf7 5.Nxe5+ Nxe5 6.Qh5+ Kf6 


By protecting my Knight, I can remain up two pieces. Silly attack!

This position shows up in 289 games in The Database, with White scoring 79%. 

7.Qf5+ Ke7 8.Qxe5+ Kf7 9.Qxc5 d6 10.Qc4+ Black resigned

White is ahead two pawns. His King is safer.


Tuesday, August 22, 2023

Jerome Gambit: papachess


I visited the  papachess site online the other day, with its focus "Make real chess progress." As they say, 

Papachess is a chess service that has only one goal: to find smart ways to make chess progress automatic and fun.

Of course, part of that "fun" is touched upon in "Unleash Aggression with Italian Game: Jerome Gambit"

Jerome Gambit may be a tricky opening to master, but it is a fantastic choice for players looking for an aggressive game that can lead to early advantage.

Monday, August 21, 2023

Jerome Gambit: Titled Tuesday



Chess.com runs two 11-round Swiss tournaments every Tuesday for titled players - "Titled Tuesday Blitz". The time control is 3 1. The prize fund for each tournament is $2,500.

Canadian Grandmaster Aman Hambleton has played the Jerome Gambit (1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+) at least three times in these tournaments.


Hambleton, Aman - Dejmek, Mark W.

3 1 blitz, Chess.com, "Titled Tuesday", 2021

1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+ Kxf7 5.Nxe5+ Nxe5 6.Qh5+ Kf8 7.Qxe5 d6 8.Qg3 Nf6 9.Nc3 Qe7 10.d3 Bb4 11.Bd2 Be6 12.a3 Bxc3 13.Bxc3 d5 14.O-O-O c5 15.f4 d4 16.Bd2 Bf7 17.f5 a5 18.Rde1 b5 19.e5 Nh5 20.Qf3 Rc8 21.e6 Be8 22.g4 c4 23.Bxa5 Kg8 24.gxh5 c3 25.Rhg1 cxb2+ 26.Kxb2 Qc5 27.Re2 b4 28.Bxb4 Qb5 29.h6 g6 30.f6 Bc6 31.f7 checkmate


Hambleton, Aman - Cervantes Landeiro, Thalia

3 1 blitz, Chess.com, "Titled Tuesday", 2022

1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+ Kxf7 5.Nxe5+ Nxe5 6.Qh5+ Ng6 7.Qd5+ Kf8 8.Qxc5+ d6 9.Qe3 Nf6 10.Nc3 Kf7 11.O-O Re8 12.d3 Kg8 13.Qg3 Be6 14.f4 Bf7 15.f5 Ne5 16.Bg5 Kh8 17.Rae1 c5 18.Qh4 Qe7 19.Re3 Bg8 20.Ne2 h6 21.Rg3 Bh7 22.Bc1 Qf7 23.Nf4 d5 24.Ne6 Rg8 25.Nxg7 Rxg7 26.Rxg7 Qxg7 27.Bxh6 Qf7 28.Bf4 Re8 29.Bg5 Ned7 30.Re1 dxe4 31.dxe4 Nxe4 32.Bf4 Nef6 33.Rxe8+ Qxe8 34.Bg5 Qe5 35.Qf2 Qxf5 36.Qh4 Qe5 37.h3 Qd4+ White resigned


Hambleton, Aman - Aliakbarov, Anar Samir Oglu

3 1 blitz, Chess.com, "Titled Tuesday", 2022

1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+ Kxf7 5.Nxe5+ Nxe5 6.Qh5+ Kf8 7.Qxe5 Qe7 8.Qf4+ Nf6 9.Nc3 d6 10.d3 Kg8 11.Be3 Bxe3 12.Qxe3 c5 13.O-O-O h6 14.f4 Kh7 15.h3 Re8 16.Qf3 d5 17.e5 Ng8 18.Nxd5 Qf7 19.Nc3 Rb8 20.Kb1 b5 21.Rhf1 b4 22.Ne4 Bb7 23.Qe3 Bxe4 24.dxe4 Rbd8 25.Rxd8 Rxd8 26.f5 Rd4 27.e6 Qb7 28.Re1 Nf6 29.e5 Re4 30.Qf2 Ne8 31.g4 Qd5 32.b3 Qxe5 33.Rxe4 Qxe4 34.Qxc5 Nf6 35.a3 bxa3 36.Qxa3 Qh1+ 37.Kb2 Qxh3 38.Qxa7 Qxg4 39.Qc5 Qe4 40.b4 h5 41.b5 h4 42.Qc6 Qxc6 43.bxc6 Ne8 44.Kc3 h3 45.f6 gxf6 46.c7 Nxc7 White resigned



Sunday, August 20, 2023

Jerome Gambit: Checking With Bing



I checked with the new Bing.com (enhanced with AI) the other day, and this is what it had on the Jerome Gambit 
The Jerome Gambit is a chess opening that was invented in America. It is a very risky attack that involves sacrificing two pieces for two pawns, with the chances arising from the adversary’s king being displaced and drawn into the center of the board (en.wikipedia.orgthechesswebsite.com).

The opening is named after Alonzo Wheeler Jerome, who played it against William Shinkman in 1876, gaining popularity among players when it was published in the Dubuque Chess Journal. It used to be called the “Kentucky opening” and was changed to the Jerome Gambit in 1896 when it was featured in a treatise called “Chess openings, Ancient and Modern” (chess.com).

[The Dubuque Chess JournalApril 1874 introduced and labeled the line "Jerome's Double Opening". The Nordisk Tidende, May 1877, which was translated and reprinted in The Chess Player's Chronicle, August 1877, has the first reference I have found to "Jerome Gambit". Chess Openings Ancient and Modern, first edition, in 1889, covered the "Jerome Gambit", as did it's third edition in 1896. Joseph Henry Blackburne, in Mr. Blackburne's Games at Chess in 1899 referred to the Jerome Gambit as "the Kentucky Opening." - Rick]

The Jerome Gambit can be used to pry the king out of safety and turn a relatively quiet Giuoco Piano (literally meaning “quiet game”) into a crazy king hunt, with many tricks, traps, and tactics. It works best in bullet, where you can surprise your opponent, winning precious time and putting them under stress, making it more likely for them to blunder (chess.com). Here is an example game featuring the Jerome Gambit:

 

Lc0_1 - N.N
1 0 bullet, Chess.com, 2020

1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+ Kxf7 5.Nxe5+ Nxe5 6.Qh5+ Ke6 7.Qf5+ Kd6 8.f4 Qh4+ 9.g3 Nf3+ 10.Kd1 Qf6 11.e5+ Nxe5 12.fxe5+ Qxe5 13.Qf8+ Kc6 14.Qf3+ d5 15.Re1 Qd4 16.h3 Bxh3 17.c3 Qf2 18.Qxf2 Bxf2 19.Rh1 Bg2 20.Rh2 Bf3+ 21.Kc2 Bxg3 22.Rf2 Be4+ 23.d3 Bxd3+ 24.Kxd3 Bxf2 25.Be3 Bxe3 26.Kxe3 Re8+ 27.Kd4 Re1 28.b4 Nf6 29.a4 Rhe8 30.b5+ Kd6 31.c4 R8e4+ 32.Kd3 Rxc4 33.Nd2 Rxa1 34.Nxc4+ dxc4+ 35.Kxc4 Rxa4+ 36.Kb3 Rh4 37.b6 axb6 38.Kc2 Rh3 39.Kd2 Ke5 40.Ke2 Kf4 41.Kf2 Rh2+ 42.Kg1 Kg3 43.Kf1 Ra2 44.Ke1 Kf3 45.Kd1 Ke3 46.Kc1 Kd3 47.Kb1 Rh2 48.Ka1 Kc3 49.Kb1 Rg2 50.Ka1 Kb3 51.Kb1 Rg1 checkmate

Saturday, August 19, 2023

Jerome Gambit: Automatic


Playing the Jerome Gambit (1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+) injects enough chaos into a chess game that certain things become especially dangerous. An "automatic" move can suddenly have a lot of risk - and in a bullet game where there is not a lot of time to analyze deeply, things can end quickly.


ChadGPT5 - bsbgabriel

1 0 bullet, Chess.com, 2023

1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+ 

4...Kxf7 5.Nxe5+ Nxe5 6.Qh5+ Ng6 

7.Qd5+ Kf8 8.Qxc5+ d6 9.Qe3 Qf6 


Generally the Knight goes to f6, but Black plans to station it on e7. The Database has 32 games with the Queen at f6. White scores 70%.

10.O-O 

White's plan is to safeguard his King, line up his Rook on the same file as Black's Queen and King, and prepare for f2-f4.

10...N8e7 11.f4 c5 


With a lot of time on the clock, White might now build his position slowly: d2-d3, Nc3, Bd2, Rf2 and Raf1.

With only a minute on the clock, there is a psychological push to move quickly.

12.e5 dxe5 

What would be more natural than the automatic exchange of pawns? Why would anyone even consider the alternative 12...Qf7

13.fxe5 

Oh. I see it now. The Queen. The King. The Rook.

Bullet chess.

13...Qxf1+ 14.Kxf1 Ke8 15.Nc3 Rf8+ 16.Kg1 White won on time



Friday, August 18, 2023

Jerome Gambit: 5 Brilliant Moves for White

 



I found the following interesting exploration of the Jerome Gambit online...

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I scammed the chess.com algorithm and created a game with 5 brilliant moves for white.

So around 3 hours ago, I decided to learn Jerome Gambit Theory to play it against my friends and or my dad. I found some theory, but it wasn't all that extensive for the extremely dubious lines.

That's where my genius idea came in to find traps in the Jerome I'll never be able to use anyway. How? Using low depth Lc0 (pure positional, depth 4) and Stockfish (degraded because max depth 13).

For reference, the line which was played had a evaluation at 1 point of ~-7. But stockfish found a ridiculous perpetual. Ofc, I'm thinking at this point i should see if chess.com thinks it's brilliant as well.

Turns out, chess.com didn't think a rook sac was brilliant enough. But I've noticed in the past that it'll give random brilliant moves if the material is very imbalanced and you just keep checking.

So I made with the help of the engines a few more checks. That somehow gave the game 4 brilliant moves.

I was not satisfied.

So I made the decision to play the game on, checking if black could block with the queen and still draw the game. After a bit of analysis, it turned out that black did still have a draw.

At this point it was just about creating a situation where 1 player needs to make a single sacrifice to keep the game drawn. And Lc0 is perfect at creating these situations, since if Lc0 thinks it's winning, and stockfish thinks it's a draw, it'll most likely require a move that's hard to find at low depth (brilliant moves)

And low and behold, around 20 moves later, I saw an opportunity arise. Make a move for white that looks to be losing, black makes the best move, and the only drawn move for white is to sac a bishop.

Around 15 moves later, I can end the game in a theoretical draw and put it in chess.com's analysis. Low and behold, 5 brilliant moves by 1 player in 1 match.

https://cdn.discordapp.com/attachments/758702903673356328/823712773811863552/5_Brilliant_moves_in_Jerome_Gambit.jpg


If you want to see the pgn and chess.com's analysis, check here: https://www.chess.com/analysis/game/pgn/3WjoJuqjA6 

Engines begin playing after 7.f4.

 

Stockfish 12 NNUE (1 sec) - Lc0 (1 sec)

Testing Jerome Gambit, 2021

1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+? Kxf7 5.Nxe5+ Nxe5 6.Qh5+ Kf8 7.f4? Nf6 8.Qxe5 d6 9.Qg5 h6 10.Qh4 Qe8 11.e5 dxe5 12.f5 Bxf5 13.Rf1 Bxc2?! 14.Qc4 Qg6?! 15.Qxc5+ Kg8?! 16.Qc4+ Kh7? 17.Rxf6!! gxf6 18.Qxc7+ Kg8 19.Qc4+! Kg7 20.Qc7+! Kf8 21.Qc5+! Ke8 22.Qb5+! Kd8 23.Qd5+! Kc8 24.Qe6+! Kb8 25.Qd6+! Kc8 26.Qe6+! Kd8 27.Qd5+! Ke8 28.Qb5+! Kf8 29.Qc5+!  Kf7 30.Qc4+! Ke7 31.Qc5+! Ke6 32.Qc4+! Kd6 33.Qb4+! Kd5 34.Qb5+ Ke6 35.Qc4+ Ke7 36.Qc5+ Ke8 37.Qb5+ Kf7 38.Qc4+ Kg7 39.Qc7+ Qf7 40.Qxc2 Qh5 41.Qc7+ Kg6 42.Qxb7 Qxh2 43.Nc3 Qg1+ 44.Ke2 Rhg8 45.d3 Rab8 46.Qe4+ Kf7 47.g3 Qh2+ 48.Kd1 Rxg3 49.Ne2 Rg2 50.b3 Qh1+ 51.Kd2 Qf1 52.Qh7+ Ke8 53.Qe7+ Kxe7 54.Ba3+ Ke6 55.Rxf1 h5 56.Rh1 Rh8 57.Ke3 h4 58.Rh3 f5 59.d4 f4+ 60.Kf3 Rxe2 61.Kxe2 e4 62.Bc5 Rh7 63.b4 Kf5 64.d5 Kg4 65.Rh1 h3 66.d6 h2 67.b5 Kg3 68.Be3 f3+ 69.Kf1 Rh5 70.d7 Rd5 71.Bf2+ Kh3 72.Bg1 Rxd7 73.Rxh2+ Kg3 74.Ke1 e3 75.Rc2 Rd3 76.Bh2+ Kg4 77.Bg1 Kf4 78.Rc7 f2+ 79.Bxf2 exf2+ 80.Kxf2 Rd2+ 81.Ke1 Rxa2 1/2-1/2