Lose Never with a Strong Deferred Jerome Gambit! (Part 4)
(by Yury V. Bukayev)
The Part 4 of this my analytical investigation is also about strong deferred Jerome gambit which is important for modern opening theory and for serious practice and which is a part of the Jerome gambit (JG), not relative gambit for it.
At first let’s repeat the following thoughts from the Part 2 (September 22, 2022) of this my research: “It shouldn’t mix related (relative) 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 again. In the same part of this my research I have written about it: “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 (it’s much less strong move) White gets a sharp play, you know the modern theory of August 2022 from my publications on Rick Kennedy’s blog. If 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”.
In my Part 3 (January 16, 2023) there was an important improvement of the Part 2: “But recently I have made a revision of this my view. Thus, if Black plays 4…Nf6, but then White makes his next “calm” move and Black makes the move 5…Nxe4 or another King’s Knight move (excluding 5…Ng4, 5…N[x]d5), then 6.Bxf7+ Kxf7 7.Nxe5+ Nxe5 form also deferred lines of JGTA. Analogously, we may unite them with the standard line of JGTA and name each of them as ‘JGTA’. Finally, a deferred line of JG is each deferred line of JGTA where the move n.Bxf7+ is made and where the further sequence of moves n…Kxf7 (n+1).Nxe5+ Nxe5 is made or can be made. For example, 1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.c3 (4.0-0) 4…Nf6 5.0-0 (5.c3) 5…Nxe4! 6.Bxf7+AN is one of deferred lines of JG. Thus, after 6…Kxf7 7.Nxe5 (7.d4!?, 7.Qb3+!?) 7…Nxe5!? White can play 8.d4, 8.Qh5+, 8.Qb3+, for example: 8.Qh5+ Ng6!? 9.Qd5+ with 10.Qxe4. If you want to get it as White, then your opponent can’t prevent it. But this gambit’s force doesn’t let me say: “Lose never with it”. Further, the new and extremely important line of JG, where Black and White make no very bad moves in the whole game, was considered first: 1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.c3 (4.0-0) 4…Nf6 5.0-0 (5.c3) 5…Nxe4! 6.b4 AN Nxf2!? 7.Bxf7+!.
Further, this line was considered again and much more deeply in my other analytical research ‘The Winning Part of the Same Jerome Gambit – 4.c3 Nf6 5.0-0 Nxe4 6.b4 Nxf2 7.Bxf7+!’ (2023, Part 1 and Part 2), where it was proved that 7.Bxf7+! leads to White’s advantage and that it is a protogambit.
Now let’s start to consider else one new and very important line of JG: 1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.c3 (4.0-0) 4…Nf6 5.0-0 (5.c3) 5…Nxe4! 6.b4 Bxf2+! AN (6...d5!) 7.Kh1!? Bb6!? (7...d5!) 8.Bxf7+!.
Thus, the most strong line for Black is, probably, the following:
8…Kxf7 9.Ng5+! Kg8 10.Nxe4 d5. Here the following blunders are very important:
I)11.d4 dxe4?? 12.Qb3+, and White wins,
II)11.Qf3 h6?? 12.Qf7+ Kh7 13.Nf6+, and White wins,
III)11.b5 dxe4?? 12.Qb3+, and White wins.
Probably, 8.Bxf7+! is a new “protogambit”.
And I should say that Bishop’s position on b6 doesn’t prevent to classify it as a new part of JG, because in the JG-line: 1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.c3 Nf6 5.0-0 Nxe4! 6.b4 Nxf2!? 7.Bxf7+! Kxf7 8.Qb3+ Ke8 9.d4 Be7! 10.Rxf2 the situation with Black’s Bishop and Knight is similar.
Once again, the Jerome gambit (JG) isn’t 1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+ only, it is also a large family of deferred gambits which are the parts of JG. And its above new part is, probably, the JG which is one of the most important for practice: the probability of Black’s move 7…Bb6 in practice is enough high.
Note: Author’s theoretical novelties-moves are marked by the symbol “AN”.
Contact the author: istinayubukayev@yandex.ru
© 2023 Yury V. Bukayev (Copyright © Bukayev Yury Vyacheslavovich 2023). All rights reserved.
[A legal using of this investigation with a reference to it is permitted
and doesn’t require author’s consent.]
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