The Winning Part of the Same Jerome Gambit – 4.c3 Nf6
5.0-0 Nxe4 6.b4 Nxf2 7.Bxf7+! (Part 1)
(by Yury V. Bukayev)
This my new analytical research is a development of my other analytical research ‘Lose Never with a Strong Deferred Jerome Gambit! (Part 3)’ (it was published in January 16, 2023, on Rick Kennedy’s blog). Dear readers will understand the great and unique importance of the current work in details after reading of the previous one.
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!? Nxf2!? 7.Bxf7+!. It’s a part of the same Jerome gambit (not a relative gambit), dear readers can find the explanation in my previous work. This variation is important for modern opening theory and for serious practice. In fact, after 6…Nxf2 the move 7.Bxf7+! is the best one, and it leads to White’s advantage, most probably. Thus, here are my new inventions after this move.
I)7…Kxf7 8.Qb3+ Ke8 9.d4! [9.bxc5!?] 9…Be7! 10.Rxf2 White stands better
II)7…Kf8 8.Qe2 Nh3+ 9.Kh1 Nf2+ [9…Nf4?! 10.Qc4 White stands better] 10.Rxf2!! [After 10.Kg1 Nh3+ 11.Kh1 Nf2+ 12.Kg1 White gets only a draw; 12.Rxf2!! – 10.Rxf2!!.] 10…Bxf2
A)11.Qxf2?! Qf6!
A1)12.Bd5 [White prevents 12…e4.] 12…Ne7 13.Qc5 b6 14.Qxc7 Nxd5 15.Qxe5, and White lost attacking opportunities, Black has the clear advantage
A2)12.Bh5 [12.Bb3 e4 13.d4 exf3 leads to Black’s some advantage, because White’s compensation isn’t enough] 12…e4 13.d4 exf3 14.Bxf3 d6 15.Be3 Bf5, and Black has some advantage, because White’s compensation isn’t enough
B)11.Bb3!! [White uses the facts that positions of Black’s King and Rooks are bad and wants to develop his pieces rapidly, to prepare the move Ra1-f1 or Ra1-e1.]
B1)11…Bb6 12.d4! d5 [12…h6 13.Ba3 d6 14.Nbd2, and White stands better] 13.Bg5! Qd6 [13…Qe8 14.Bxd5, White stands better] 14.Nbd2 Be6 15.Bh4! h6 [15…e4?! 16.Ng5!] 16.b5 Na5 17.Nxe5 Nxb3 18.Nxb3! [18.Ng6+!? Kf7! 19.Nxh8+ Kg8 with the unclear position] 18…Kg8 19.a4! a5 20.bxa6 bxa6 21.a5 Ba7 22.Rf1 Re8 23.h3 Bc8 [23…h5 24.Qd3!] 24.Qh5 Rf8 25.Rxf8+ Qxf8 26.Nc6 Kh7 27.Nxa7, White stands better
B2)11…e4 12.Qxe4
1)12…d5 13.Bxd5 Qe7 14.Qf4+ Qf6 15.d4 Qxf4 16.Bxf4 Ne7 17.Bb3 Ng6 18.Bxc7 Ke7 19.Nbd2 Kd7 20.Be5 Nxe5 21.Nxe5+ Kc7 22.Rf1 Bh4 23.Rf7+ Kb8 24.Ne4!, White stands better
2)12…d6 13.d4 Qe7 14.Qd3 Bh4 15.Na3 Bg4 16.Bd2 Bf6 17.h3 Bh5 18.Re1 Qd7 19.Ng5! d5 20.Ne6+ Kg8 21.Nb5! Bf7 22.Nc5! Qc8 23.Qg3, White stands better
C)11.Bh5!? e4 12.b5 exf3 13.Qxf2 Ne5 14.d4 Nf7 15.Bxf3, and White has enough compensation, probably.
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 (not of relative) systems with Bxf7+ which are the parts of JG. And the above part of JG is, probably, the strongest and the most important for practice: the probability of Black’s move 6…Nxf2 in practice is enough high.
Thus, my previous research and this research are a start of the golden era of JG in chess opening theory and practice!
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.]
