Saturday, January 29, 2022

Jerome Gambit: Rapid Wandering Queen



One criticism of the Jerome Gambit (1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+) is that White's Queen is developed too early and moved too often. Time and again, though, White keeps things together and succeeds.

The following 1-minute bullet game is a radical example. White's Queen wanders - but gets back into play in time to help checkmate the enemy King.

Impressive.


angelcamina - Baronvontotterkind

1 0 bullet, lichess.org, 2022


1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+ 

4...Kxf7 5.Nxe5+ Nxe5 6.Qh5+ Ng6 

7.Qd5+ Ke8 8.Qxc5 Nf6 9.Nc3 d6 10.Qb5+ 

White's Queen embarks on an adventure...

10...c6 11.Qb3 Qe7 12.d3 Be6 13.Qa3 b5 14.O-O a5 15.b4 a4 


White's Queen is temporarily out of play. On the other hand, Black has spent time with his pawn moves. Who benefits? Black continues to have his piece-for-two-pawns advantage. 

16.f4 Bf7 17.Bd2 Rf8 18.Rae1 Kd7 

19.Qb2 a3 20.Qa1 Rab8 21.Ne2 22.Ng3 d5 


Even with White's Queen offside, opening up the center (where his King is) does not look like a good idea. Additionally, White can advance his e-pawn instead of exchanging it, bringing more problems to his opponent.

23.exd5 Qd6 24.dxc6+ Qxc6 25.Nf5 Qxc2 

Now it is Black's Queen that goes wandering. It is not immediately dangerous, but it allows White's Queen to finally return to the game.

26.Qd4+ Kc7 

A slip in a complicated position - as time runs down.

Stockfish 14.1 shows exchanging to an even endgame: 26...Bd5 27.Rf2 Rfc8 28.g4 Ra6 29.g5 Qb2 30.gxf6 Qxd4 31.Nxd4 gxf6 32.Be3 Nh4 33.Kf1 Ra4 34.Rb1 Re8 35.Bc1 Rc8 36.Nxb5 Rxb4 37.Rxb4 Rxc1+ 38.Ke2 Rc2+ 39.Ke1 Ng2+ 40.Rxg2 Rxg2 41.Rd4 Kc6 42.Nc3. Not so easy. 

27.Rc1 Qxc1 28.Rxc1+ Kb7 29.Nd6+ Ka6 30.Rc6 checkmate




Friday, January 28, 2022

Jerome Gambit: Return Is Not Enough



One "scientific" response to the Jerome Gambit (1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+) is to return the sacrificed material with the hope of blunting the attack.

In the following game, however, two factors continue to favor the attacker: an extra pawn, and Black's early assessment that he can relax.


Littleplayerparis - Lokotromis

10 0 blitz, lichess.org, 2021


1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+ 

4...Kxf7 5.Nxe5+ Kf8 


Mentioned in Alonzo Wheeler Jerome's analysis of his opening in the March 1874 Dubuque Chess Journal - see "In The Beginning..." - and appearing in Jerome - Brownson, Iowa, 1875 (1/2-1/2, 29).

6.Nxc6 Qf6 

A clever idea, threatening both checkmate and the capture of White's Knight - which cannot retreat nor be traded off. The Database has a dozen games with the move, with White scoring 75%.

Still, the simple 6...dxc6 was a better idea, because it turns out that the White Knight can continue to cause difficulty for Black.

7.d4 Qxc6 

8.Qf3+ Nf6 9.dxc5 Qxe4+ 10.Qxe4 Nxe4 


White has recovered his sacrificed material and will remain a pawn up. It is Queenless middle game, different from the violent attack that often comes in the Jerome Gambit, but White can press on with his advantage.

11.Bf4 Nxc5 12.Bxc7 d5 

Black relaxes too soon. Moving a center pawn to open up a line for development is usually a good idea, but...

13.Bd6+ Black resigned




Thursday, January 27, 2022

Anatoly Karpov & Jerome Gambit (Part 2)

 


Anatoly Karpov & Jerome Gambit (Part 2)

(by Yury V. Bukayev)

Dear reader, you know that usually I write about new theoretical inventions and psychology in chess openings on this blog, but sometimes I write here about notable chess games.

The Part 2 of this my work is about the World Champion, Top GM Anatoly Yevgenyevich Karpov, one of the strongest players in chess history, and about one of his worst simultaneous exhibition games ever.

Of course, readers of jeromegambit.blogspot.com remember Rick Kennedy’s words of his publication (February, 17, 2021) about this game:

“The other day Yury Bukayev sent me a game played by World Champion Anatoly Karpov in a simultaneous display <…>:

Karpov - Delgado, Simul, Terrassa, Spain, 1976: 1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 b5 5.Bb3 Na5 6.Bxf7+ Kxf7 7.Nxe5+ Ke7 8.d4 Nf6 9.O-O Qe8 10.Nc3 Bb7 11.Re1 Kd8 12.d5 Qh5

<…> Karpov lost in 58 moves <…>

I am still searching for answers, starting with the question "Didn't Karpov's 12th move simply drop a piece?" and following with "Why didn't Delgado play 12...Qxe5 ?" My suspicion is that Delgado didn't believe that his opponent would make such a mistake, and so declined the sacrifice, only to take advantage of another error, about 30 moves later...”

These two questions by Rick Kennedy aren’t easy to answer really. Here are my main versions about true answers. Firstly, most probably, Anatoly Karpov played 12.d5??, because he confused Black's King on e7 with the Queen on e8. Probably, these two pieces were of an equal height, with broken crowns. I think, after his 10.Nc3 A.Karpov passed to a next board and forgot the history of this game. It maybe, he forgot it only after his 11.Re1. Secondly, probably, Mr. Delgado played 12...Qh5??, because he planned to play 12…Qxe5! (-+) 13.f4 Qh5!? (-+), but he lost his attention when his eyes were refocused from the board to A.Karpov’s face, so he forgot that moment that the moves 12…Qxe5 and 13.f4 weren’t done yet.

I suggest to name this tragic (for White) ‘variation’ 12.d5?? as the ‘First Tragic Jerome-ish variation’. It has the following main properties which are common to the main line of the Jerome gambit (1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+ Kxf7 5.Nxe5+): White lost his King’s Bishop after the capture of the pawn on f7 with a check, White can lose his King’s Knight after the capture of the pawn “e”, Black can’t castle.

Fortunately for the World Champion, the winning move 12…Qxe5 didn’t appear in this game. After 12...Qh5?? 13.Qxh5! Nxh5 14.Nf7+ White got a large advantage, and further moves of this game aren’t so interesting here.

Finally, readers remember that the Nightingale gambit (1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 b5 5.Bb3 Na5 6.Bxf7+!?) is much stronger than we thought earlier: this fact was proved in my analytical article ‘The Nightingale Gambit etc. (C70, C20, C60): Bombs’ (June, 16, 2021). So it isn’t serious to discuss a comparison of theoretical forces of A.Karpov’s 6th move and of the psychological move 4.Bxf7+ in the Giuoco Piano. But A.Karpov’s 8.d4 (instead of 8.Nf7!) brings the position closer to some of Italian risky Jerome-ish gambits.

Wednesday, January 26, 2022

BSJG: Danger Comes



A major risk for Black in the Blackburne Shilling Jerome Gambit is an unsafe King - if he wanders too far from home, he risks being checkmated.

On the other hand, sometimes even when the King is careful, danger comes for him. As in the following blitz game.


alrivz01 - DBOMB

10 0 blitz, lichess.org, 2021

1.e4 e5 2.Nf3 Nc6 3.Bc4 Nd4

The Blackburne Shilling Gambit .

4.Bxf7+ 

The Blackburne Shilling Jerome Gambit.

4...Kxf7 5.Nxe5+ Ke6 6.c3 

We looked at 6.Qh5 in "BSJG: Generosity Rules".

6...Kxe5 7.cxd4+ Ke6 


Black avoids the temptation of 7...Kxd4. Can the King remain safe?

8.d5+ Ke7 9.O-O d6 10. d4 Nf6 

White's 2 extra pawns, their central control (with attacking possibilities), and the unsafe Black King are compensation for Black's extra piece.

11.Nc3 Bg4 

Hoping to forestall f2-f4. 

12.Qb3 b6 

The b-pawn is not the issue. Stockfish 14.1 looks at 12...Kf7 13.h3 Bc8 14.e5 Ne8 15.f4 Bf5 16.g4 Qh4 17.Ne2 Bxg4 18.hxg4 Qxg4+ 19.Kf2 Be7 20.Qf3 h5 21.f5 Bh4+ 22.Ke3 Rd8 23.Nf4 Bg5 24.Qxg4 hxg4 25.Ke4 Bxf4 26.Bxf4 Nf6+ 27.exf6 Rde8+ 28.Kd3 and White comes out on top.

13.e5 dxe5 14.dxe5 Nd7 15.Qb4+ Ke8 16.Qxg4 Black resigned

The Black King is relatively safe at home, at least for the moment, but White is ahead in material.


Tuesday, January 25, 2022

Jerome Gambit: One King Survives


There are lines in the Jerome Gambit (1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+) where both Kings are at risk, and the winner of the game will be the one who gets to the enemy monarch first.

The following blitz game is a good example.


ryuugu-rena - WeeCampbell

10 0 blitz, lichess.org, 2022

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

 4...Kxf7 5.Nxe5+ Nxe5 6.Qh5+ Ke6 

7.f4 Qf6  8.Rf1 Ng6 


There are alternatives, including 8...Nf7 seen in Sekci - Jobert19, 3 2 blitz, lichess.org, 2021 (1-0, 11) and 8...Nd3+ in Vlastous - Kombe, internet, 2017 (1-0, 22). It is also useful to look at the post "Jerome Gambit: GMHikaruOnTwitch" which includes the grandmaster's games with 8...Ne7 and 8...Nh6.

Stockfish 14.1 prefers 8...d6, which was recently successful in tilo1402 - Ryooo_yos3, 10 0 blitz, lichess.org, 2021 (0-1, 16) and oaitseziom - MORCHID, 10 0 blitz, lichess.org, 2022 (0-1, 10)

9.Qxc5 Qh4+ 

Black strikes at the enemy King. It is interesting that Stockfish 14.1 believes that he should, instead, work to sue for peace with by repeating the position after 9...Kf7 10.Qxc7 Qh4+ 11.g3 Qxh2 12.f5 N6e7 13.d3 Nd5 14.Qc4 Qxg3+ 15.Rf2 Qg1+ 16.Rf1.

10.g3 Qxh2 


Which King is more at risk?

White now has a checkmate in 6 moves.

11.f5+ Kf7 12.fxg6+ Kxg6 13.Qf5+ Kh6 14.d4+ Black resigned



Monday, January 24, 2022

Jerome Gambit: Six Of One...



The challenge of playing a 1-minute bullet game is two fold: playing decent moves while also moving quickly.

Wolfpak1051 has played some interesting - and fast - Jerome Gambits (1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+) at lichess.org.

The following game looks, at first glance, like his opponent has kept up positionally, and in fact may actually be better.

However, Black's resignation was most likely a reflection that he has not kept up on the clock, and that his flag was soon to fall.

Resignation or loss on time, it still counts as 1 - 0. 


Wolfpack1051 - efms

1 0 bullet, lichess.org, 2022


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

4...Kxf7 5.Nxe5+ Nxe5 6.Qh5+ Ng6 

7.Qd5+ 

This "nudge" is often useful.

7...Ke8 8.Qxc5 Nf6 9.Qe3 d6 

This standard Jerome Gambit position shows up in about 460 games in The Database. Activity on the e-file and the action of White's d- and f-pawns are significant parts of upcoming play.

10.Nc3 Qe7 11.O-O b6 12.d4 Bb7 13.f3 Kf7 


Black is pressuring White's reinforced center. Now he plans to castle-by-hand.

14.Qg5 Rhe8 15.Qg3 Kg8 16.Bg5 Black resigned


There is plenty of play left in the position, so most likely it was a time issue for Black. 

Sunday, January 23, 2022

Jerome Gambit: A Secret No More



A recent Jerome Gambit (1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+) game clarified the assessment of a particular variation, and it will be interesting to see if future games following that line.

This probably should arrive as Jerome Gambit Secret #16

 

MasterKoi - Ravshan001

10 0 blitz, lichess.org, 2021


1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+ 

4...Kxf7 5.Nxe5+ Nxe5 6.Qh5+ Ke6 

7.Qf5+ Kd6 8.Nc3 

White decides to add to his development, instead of hitting the enemy Knight with 8.f4. This move shows up in 179 games in the Database. As a cautionary point, White scores 27%.

8...Nh6 9.Nb5+ Kc6 10.Qxe5 

Earlier games have now seen here 10...Kxb5:

vpff - treize, blitz, FICS, 2002 (0-1, 32)

irvpat - pavlo, blitz, FICS, 2009 (0-1, 30)

bhargavs - TKUPADHYAYA, standard, FICS, 2011 (1-0, 15)

ZahariSokolov - snazzzzzz, 5 0 blitz, FICS, 2019 (1-0, 29)

Ponce, J - NN, 2020 (1-0, 19)

as well as 10...d6

Astral1119 - Keyser_S, 1 0 bullet, lichess.org, 2020 (1-0, 15)

10...Bxf2+ 

In a blitz game, this kind of a move can come as a shock. Its impact was immediate.

11.Kxf2 Ng4+ White resigned


White will lose his Queen.

Of course, he should not have captured the Bishop, but played, instead, 11.Ke1. After his Queen is able to move - say, 11...d6 12.Qd5+ Kd7 then he can play 13.Kxf2, when play can continue 13...Qf6+ 14.Ke2 c6 15.Qxd6+ Qxd6 17.Nxd6 Kxd6 and Black will have an extra piece for White's two extra pawns.

There was an earlier example of 10...Bxf2+, in theHARDWAY - emlai, 5 5 blitz, lichess.org, 2016, but it did not lead to a win by Black; White played 11.Kf1 and won in 29 moves.