New Analysis in the Jackal Attack
This is a very interesting exchange sacrifice in the Jackal Attack in a game played last year.
I doubt many human players would even consider 15.Be7!! which was possible early in the game.
The whole course of the game is interesting.
Regards, Adrian.
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Gerona Maura, Jesus (2026) Garcia Molla, Victor Manuel (2278)
Cullera op 25th (2005) Annotated by Adrian Skelton
1.e4 e6 2.Nf3 d5 3.Nc3 Nf6 4.e5 Nfd7 5.d4 c5 6.Bg5 Qb6 7.dc Bc5 8.Qd2 Bb4 9.a3 Qa5 10.ab!? Qa1 11.Nd1 Nc6 12.Bb5 (Diagram)
12...a6 Alternatively;12...O-O 13.O-O a6 [13...Nde5 14.Ne5 Ne5 15.Nc3 Qb2 16.Rb1 can lead to a repetition of moves.] 14.Bc6 bc 15.Nc3 Qb2 16.Rb1 Qa3 17.Qe1! threatening Rb3, gives White the advantage.
13.Bc6 bc 14.O-O Qa4
14...Qa2 15.b3 remains unclear; eg.15...Rb8 16.Nd4 Ne5 17.Bf4 f6 18.Be5 fe 19.Nc6 Rb7 20.Nc3 Qa3 21.Nd5! appears to be winning.
(See diagram.) Here White missed a very strong and shocking move 15.Be7!! I discovered this having reached this position before in a five minute game on the internet although (not surprisingly) I missed it during the game). If now 15...Ke7 White wins by16.Nc3 Qb4 17.Nd5 winning Black's queen. Alternatively 15...Qb5 [Or 15...c5 16.Qg5] 16.Qg5 is winning against both 16...g6 17.Bd6 or 16...Rg8 when again 17.Bd6 f6 18.Qh5 is too strong.
15.Nd4 c5 16.bc Nc5 17.b3 Qd7 18.Qa5 Nb7 19. Qb6 h6 20.Bh4 g5 A dubious expansion that harms Black more than White.21.Bg3 Nd8 22.Ne3 Qa7 23.Qb4 a5 24.Qd2 Ba6 25.Ra1 h5 26.h4 g4 27.Ra5 Qb8 (Diagram) Care is always needed when placing the queen in line with the enemy bishop. Here, it marks the beginning of the end.
28.Nd5! ed It would have been prudent not to have taken the piece. 28...Kf8 was better although White would have retained a definite advantage.) 29.e6 Qb7 30.Nf5 Qa7 31.Nd6+ Kf8 32.Nb5 Bb5 33.Ra7 Ra7 34.Qb4+ Kg8 35.e7 Ne6 36.Qb5 Re7 37.Be5 Rh6 38.Qb8+ Kh7 39.Qh8+ Kg6 40.Qf6+ 1-0