Lose Never with a Strong Deferred Jerome Gambit! (Part 1)

 

Lose Never with a Strong Deferred Jerome Gambit! (Part 1)   

  

(by Yury V. Bukayev) 

 

 

This analytical investigation is about strong deferred Jerome gambits which are important for modern opening theory and for serious practice.   

It shouldn’t mix related lines for an opening with its deferred ones. Let’s consider the Queen’s gambit. For example, 1.Nf3 d5 2.d4 Nf6 3.c4 is one of deferred types of the Queen’s gambit (we may name it as ‘Nf3Nf6-Queen’s gambit deferred’), 1.d4 e6 2.Nf3 d5 3.c4 is the other deferred type of the Queen’s gambit (we may name it as ‘Nf3e6-Queen’s gambit deferred’) etc. Often we unite them with the “standard line” 1.d4 d5 2.c4 and name each of them as ‘the Queen’s gambit’. In contrast with them, the Catalan opening (for example) is an opening which is related to the Queen’s gambit. We never unite it with the Queen’s gambit, because the plan with Bxc4 after …dxc4 is impossible in the Catalan opening.  

Let’s consider the Jerome gambit twice accepted (JGTA) analogously. Its “standard line” is 1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+ Kxf7 5.Nxe5+ Nxe5, and after 6.Qh5+ or 6.d4 White gets some compensation, you know. If, for example, 5.Bxf7+ Kxf7 6.Nxe5+ Nxe5 is played after 4.Nc3 (or 4.d3, or 4.0-0, or 4.c3, or any other “calm” move) 4…a6 (or 4…h6, or certain other moves: 4…a5, 4…b5, 4…Rb8), then the same White’s plans to return a part of gambit material (7.Qh5+ and 7.d4) get no additional obstacles here in comparison with the standard line. That is why 1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Nc3 a6 5.Bxf7+ Kxf7 6.Nxe5+ Nxe5 and other above lines are deferred lines of JGTA. Analogously, we may unite them with the standard line of JGTA and name each of them as ‘JGTA’. In contrast with them, if Black plays 4…Nf6 (or 4…d6, or any other move which we don’t see above), then 5.Bxf7+ Kxf7 6.Nxe5+ Nxe5 forms only a related line for JGTA, so we may not unite it with JGTA.  

Is it possible to get a deferred line of JGTA where Black makes no bad moves in the whole game, where the move “Bxf7+” can’t lose (probably), where an interest for important modern opening theory and for serious practice isn’t little? I have invented such gambit: 

1.e4 e5 2.Nc3 Nc6 3.Bc4. We have the Vienna game now, and further it can be transposed with the formation of other openings. Here two ways are very interesting: 

Way 1. 3…a6!? AN [It is made with the idea 4.f4 ef 5.Nf3 b5!? with the unclear position. The move 4…Bc5 isn’t good: 5.Nf3 d6, and after 6.Ng5! Nh6 7.Qh5 0-0 8.f5 or 7…Qd7 White has the initiative.] 4.b3?! [White tries to prepare f2-f4, but it doesn’t require this preparation here, in fact. Although this move is very useful in some possible cases (for example: 4…Nf6 5.Bb2 Ne4?! 6.Ne4 d5 7.Bd3 de 8.Be4 Nd4 9.Qh5 Bd6 10.Nf3 Nf3 11.Bf3, and White has the advantage; 4…Na5? 5.Bf7 Kf7 6.Qh5 Ke6 7.Qf5 Kd6 8.d4 (or even 8.Ba3) 8…ed? 9.Ba3!, and White wins), I don’t recommend you to play it, if your opponent is a top grandmaster.] 4…Be7!? [Black keeps a good position. In the case of 5.f4 Black can respond 5…ef 6.Nf3 Bh4!?.] 5.Nf3!? h6!? [Black keeps a good position, because 6.d4 isn’t good now: White’s Knight on c3 doesn’t have a protection here. Black considers the move 5…h6 as one of calm alternatives to 5…Nf6 6.Ng5 0-0 7.f4 ef 8.0-0, where the play is more complicated.] 6.Bb2 Bc5!? [Black prevents 7.d4.] 7.0-0 b5!? [After 8.Bd5 Bd6! 9.d4 ed! Black has chances to defend.] 8.Bxf7+!? [White’s goal is a win or a draw in all cases. I suggest the name ‘the Natural Star Jerome Gambit Deferred’ for this gambit, because this goal, probably, can be achieved, as we’ll see below. We may unite it with JG.] 8…Kxf7 9.Nxe5+! Nxe5 10.Qh5+! Kf8! [10…g6? 11.Qe5 with the win; 10…Ng6? 11.Qd5, and 12.Qa8 with the advantage; 10…Ke6 11.Nd5 Qg5 (11…Nf6? 12.Qe5 Kf7 13.Nf6 with the win; 11…Nc6? 12.Nf4! Kd6 13.Qd5 with the win; 12.Qg4 Kd6 13.Qg7 Qg5 14.Qh8 with the advantage; 12.Qf5 Kd6 13.Qg6 Nf6 14.Nf6 gf 15.Bf6 Qg8 16.Bg7 Qe6 17.Qg3 with the advantage) 12.Nc7 (or 12.Qg5 hg 13.Nc7 – 12.Nc7) 12…Kd6 13.Qg5 hg 14.Be5 Ke5 15.Na8 Kd6 16.a4! Bb7 17.ab! ab 18.b4 with the advantage; 17…Ba8 18.Ra6 with the advantage] 11.Qxe5 d6! 12.Qf4+! Qf6 [12…Nf6? 13.Nd5 Kf7 14.d4 Ba7 15.Nb4 (with the idea 16.e5), and White has the advantage.] 13.Qg3! Ne7 [The move 13…b4 is weaker: 14.Nd1!? Bd4 15.c3 bc 16.dc Bb6, and after 17.Ne3 or 17.Kh1 White has enough compensation for the material. After 13…Bb7 14.Qd3! White plans 15.Nd1 and has enough compensation too: 14…Bd4?? 15.Nd5! with the advantage; 14…Qd4 15.Qf3 Qf6 16.Qd3 Qd4 = ; 15…Nf6 16.d3! Ba3 17.Ba3 Qc3 18.Rab1! (with the idea 19.Bb2!) with enough compensation.] 14.e5! Qf7 [14…de?! 15.Ne4, and White stands slightly better] 15.Ne4! Nf5 [The position is complicated and unclear. If 15…Bb6, then 16.ed Nf5! 17.Qd3 – 15…Nf5.] 16.Qd3 Bb6 17.exd6!. The material is equalized (three pawns against a Bishop), the position is complicated and unclear. It maybe, White gets a draw in all cases after a long fight. 

Way 2. 3…h6!? [Black prepares to meet 4.f4 AN: 4…ef 5.Nf3!? g5 6.h4!? Bg7 with a good position. We can see the move 3…h6 in the Bukayev Jerome counter gambit (1.e4 e5 2.Nc3 Nc6 3.Bc4 h6 4.Nf3 Nd4?! 5.Bf7!) which is one of deferred Blackburne shilling Jerome gambits. We may unite it with BSJG. This gambit was considered on Rick Kennedy’s blog, later it was mentioned in other places including the chess magazine ‘Unorthodox Openings Newsletter’, 2014, N.33, P.3.] 4.b3?! AN [This move is useful in some possible cases (for example: 4…Na5? 5.Bf7 Kf7 6.Qh5 Ke6 7.Qf5 Kd6 8.d4 (or even 8.Ba3) 8…ed 9.Ba3 or 9.Bf4, and White wins). Moreover, we remember the similar plan in the Becker defence of the King’s gambit accepted: 2.f4 ef 3.Nf3 h6 4.b3!?. So White tries to prepare f2-f4.] 4…Be7!? [Black keeps a good position. In the case of 5.f4!? Black can respond 5…ef 6.Nf3 (6.Bb2 Bh4! 7.Kf1 Bf6!) 6…Bh4!.] 5.Nf3!? a6!? 6.Bb2 Bc5 7.0-0 b5 8.Bxf7+!? etc. 

 

Note 1: Here we can see the track Bf8-e7-c5 instead of Bf8-c5, but if we start from the standard line of the Giuoco Piano (1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5), then Black must play …b7-b6 and later …b6-b5 to get the same position: 4.Nc3 h6 (with the idea 5.d3 Nf6!) 5.0-0 a6!? AN (Black plans 6…d6) 6.b3?! b6?! (these moves are enough strange) 7.Bb2 b5 8.Bxf7+!? etc. A lot of experts can think now: “There is a complex of the Woman player’s luck opening (the Bednikova opening) and of the Italian opening”, although such method to name it is arguable.  

 

Note 2: Author’s theoretical novelties-moves are marked by the symbol “AN”. 

 

 

Contact the author:  istinayubukayev@yandex.ru  or  Facebook  

 

 

© 2021 Yury V. Bukayev (Copyright © Bukayev Yury Vyacheslavovich 2021). All rights reserved.  

[A legal using of this investigation with a reference to it is permitted  

and doesn’t require author’s consent.] 

 

 

Jerome Gambit: Developing (Part 5)

You can learn a lot by playing over and analyzing your games. This is a useful practice for every chess player, from beginner to world champion.

There are ideas in the following game that will help both players in the future.

dperez22 - drewski02

3 2 blitz, Chess.com, 2021

1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+ 

4...Kxf7 5.Nxe5+ Nxe5 6.Qh5+ Ke6 

7.f4 Nf6 

Attack that Queen! Shouldn't three pieces hold off Her Majesty?

Actually, no. This is the kind of move that can pop up in a blitz game, where the depth of analysis can suffer. The Database has 115 examples.

8.Qxe5+ Kf7 9.Qxc5 d6 

Having recaptured sacrificed material, White is ahead by a couple of pawns.

10.Qc4+ 

There are safer places for the Queen to return to, but you could not tell this from investigating The Database, where the text move has scored 8 - 1.

10...d5

To his credit, drewski02 comes up with a novelty that is probably the strongest response. 

11.exd5 

Opening up the e-file is dangerous.

11...Nxd5 

Missing 11...Re8+ which would turn the game to Black's advantage.

12.Nc3 

Targeting the Knight, but much wiser was the discrete 12.O-O. 

12...c6 

This makes sense, but it would have been useful to fit in 12...Re8+. 

13.Nxd5 

Again: 13.0-0 was prudent.

13...cxd5 14.Qd4 

 14...Qh4+ 

Either this move or 14...Re8+ put White's King under pressure. 

15.g3 Rd8 

This has to be a mouse slip. With 15...Re8+, Black's attack would build.  

16.gxh4 

White is up a Queen and a couple of pawns. His only real danger now is the clock.

16...Re8+

Yes - but late.

17.Kf2 Bg4 18.Qxd5+ Be6 19.Qh5+ Kg8 20.Rg1 Rf8 21.Qh6 Rf7 

Instead, 21...Rxf4 would just be a flash in the pan.

22.Qxe6 Raf8 

Black is tied up. White prepares checkmate.

23.b3 b5 24.Bb2 a5 25.Rxg7+ Kh8 26.Rxf7+ Kg8 27.Rg7+ Kh8 28.Rg8 checkmate

Jerome Gambit: Developing (Part 4)

 

The following game is another Jerome Gambit (1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+) from the informal blitz match we have been looking at. Surprising moves continue to appear, in part because the Jerome inspires creativity. The time control also has its impact.

drewski02 - dperez22

3 2 blitz, Chess.com, 2021

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

 4...Kxf7 5.Nxe5+ Nxe5 6.Qh5+ Ke6 

7.c3

This move is a regular part of the Giuoco Piano - 1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.c3. It does not fit in well with the Jerome Gambit, however, because of the "hole" it creates at d3 - Stockfish 14 assesses Black now as being the equivalent of a Queen ahead of his opponent.

The Database pushes back against that assessment, however. There are 30 games with this move, with White scoring 42%.

The issue, as ever, is, given the time available and the experience with the Jerome Gambit, can Black take advantage?

7...Bxf2+ 

Wow.

The recommended response is 7...Nd3+, when White stands to lose material in a variety of ways. 8.Ke2 allows the Knight to fork White's King and Queen with 8...Nf4+. 8.Kd1 allows the Knight to fork White's King and Rook with 8...Nxf2+. 8.Kf1 is probably the strongest response, but 8...Qf6 would be the start of a serious attack on the King.

The text - returning the Jerome Bishop, similar to the Jerome counter-gambit - is still good for Black. After all, being two pieces ahead, he can afford to sacrifice one.

8.Kxf2 Qf6+ 9. Kg1 Nd3 

Now the Knight joins the attack. It is a bit strange, but anticipating d2-d4 with either 9...d6 or 9...Nf7 would be stronger.

The main problem with the move is now that 10.Qd5+ would allow White to collect the Knight.

10.Qg4+

White has a plan to defend against the checkmate threat, but it is not enough. He loses a piece, and then receives a surprise.

10...Kf7 11.Qg3 Nxc1 12.d4 Ne2 checkmate

Jerome Gambit: Developing (Part 3)

Here is the third game in an informal match between developing Jerome Gambit (1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+) players.

dperez22 - drewski02

3 2 blitz, Chess.com, 2021

1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+ 

4...Kxf7 5.Nxe5+ Nxe5 6.Qh5+ Ke6 

7.Qf5+ Kd6

So far, "book" all the way.

8.d4 

Offering a pawn to open the c1-h6 diagonal. This could be a response to play in drewski02 - dperez22, 3 2 blitz, Chess.com, 2021 (1-0, 14), or just improvisation. The move has been seen in 73 games in The Database, with White scoring 51%.

Although Black now has 8...Bxd4, when 9.f4 Nc6 leaves him still 2 pieces ahead, we have seen in this match that aggressive moves - regardless of how "objectively" good they are - often yeild positive results.

8...Bb4+ 

Saving the Bishop from the pawn fork, with a plan to save the Knight.

9.c3 Nd3+ 

Stockfish 14 likes this move, because it allows the computer to engage in one of its favorite pastimes - helping White find a forced draw by repetition. Therefore: 10.Kd2 Nxc1 11.Qe5+ Kc6 12.Qd5+ Kb6 13.cxb4 d6 14.Qa5+ Kc6 15.Qa4+ Kb6 16.Qa5+, etc.

I don't think either one of the players was looking for a draw.

10.Ke2 Nh6

With 2 pieces en prise, Black threatens the enemy Queen, following the suggestion that you don't always have to withdraw an attacked piece if you can effectively attack a more important one. Also, in blitz play, moves that attack are often successful. 

In this case, however, White has three successful responses - and he only needs one. For starters, 11.Bxh6 would take care of the ornery Knight, and still leave two Black pieces in danger. He could also try 11.e5+, because that uncovers an attack by White's Queen on Black's forward Knight.

11.Qd5+ 

This move is attractive, too.

11...Ke7 12.Bg5+ Ke8 13.Bxd8 Kxd8 14.Kxd3 Bd6 

White has a Queen and a couple of pawns against two pieces. If he is careful and manages his clock properly, he has the win.

15.e5 Ng4 

Again, Black decides to counter a threat with a bigger threat. Again, this is often a very good idea. However, again in this game, it does not work - although he would have needed sharp eyes to see why.

16.Ke2 

This move is solid, disrupting the threatened Knight fork of King and Rook. White has built up enough of an advantage, however, that he could afford to ignore the threat: 16.exd6 Nxf2+ 17.Kd2 Nxh1 18.Qg5+ Ke8 19.Qe7 checkmate.

16....Rf8 17.f3 c6 

At this point, things just fall apart for Black.

18.Qxd6 Nf6 19.Qxf8+ Kc7 20.exf6 d6 

Perhaps at this point Black was asking himself "What else can go wrong?"

21.fxg7 b6 22.g8=Q Bb7 23.Qe7 checkmate