Wing Gambit

In chess, Wing Gambit is a generic name given to openings in which White plays an early b4, deflecting an enemy pawn or bishop from c5 so as to regain control of d4, an important central square. (Or in which Black plays ...b5, but Wing Gambits offered by Black are very rare.)

Wing Gambit
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Moves1.e4 c5 2.b4
ECOB20
Named afterPosition description
ParentSicilian Defence

The most common Wing Gambit is in the Sicilian Defence (1.e4 c5 2.b4). The most important Wing Gambit is the Evans Gambit (1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.b4), treated separately.

In the Sicilian Defence

The Wing Gambit in the Sicilian Defence runs 1.e4 c5 2.b4 (see diagram). After Black takes with 2...cxb4, the usual continuation is 3.a3 bxa3 (3...d5! is more recently considered superior, when White must avoid 4.exd5 Qxd5 5.axb4?? Qe5+ winning the rook, a blunder actually seen in tournament play in Shirazi–Peters, Berkeley 1984; instead 5.Nf3 is better) and now the main line is 4.Nxa3, though 4.Bxa3 and 4.d4 are also seen. It is also possible to decline (or at least delay acceptance of) the gambit with 2...d5.

For his pawn, White gets quicker development and a central advantage, but it is not generally considered one of White's better choices against the Sicilian and it is virtually never seen at the professional level. Amongst amateurs it is more common, though still not so popular as other systems.

After Black's 2...cxb4, another popular third move alternative for White is 3.d4. GMs George Koltanowski, David Bronstein and World Champion Alexander Alekhine have played this line.

White can postpone the gambit one move by playing the Wing Gambit Deferred, playing 2.Nf3 followed by 3.b4. The deferred Wing Gambit is considered to be best when black responds 2...e6.[1] The Portsmouth Gambit runs 2.Nf3 Nc6 3.b4, where Black is disinclined to refuse the gambit due to the positional threat 3.b5, displacing the knight and disrupting Black's smooth development.

It is also possible to prepare the gambit by playing 2.a3!? followed by 3.b4.

In other openings

There is one Wing Gambit in the French Defence; 1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4, although this is quite rare. A related idea is found in the Caro-Kann Defence after 1.e4 c6 2.Ne2 d5 3.e5 c5 4.b4, however Black can immediately achieve an advantage by playing 4...d4! (this move is also strong in the second French line given above). Even rarer is the Wing Gambit in the Bishop's Opening, 1.e4 e5 2.Bc4 Bc5 3.b4, which has some resemblance to the Evans Gambit.

There are several other "Wing Gambits" in various openings, but they are very rare, and not as notable as the openings mentioned above:

Illustrative games

Lutz vs. De Firmian, Biel 1993
1.e4 c5 2.b4 cxb4 3.a3 d5! 4.exd5 Qxd5 5.Nf3 e5 6.axb4 Bxb4 7.c3 Be7 8.Na3 Nf6 9.Nb5 Qd8 10.Nxe5 Nc6 11.Nxc6 bxc6 12.Qf3 Bd7 13.Nd4 0-0 14.Ba6 Qc7 15.h3 c5 16.Nf5 Qe5 17.Ne3 Bd6 18.Be2 Bc7 19.Nc4 Qe6 20.Qe3 Ne4 21.0-0 Rfe8 22.Bd3 f5 23.Re1 Qd5 24.Qf3 Bb5 25.Nb2 c4 26.Bf1 Bb6 27.Nd1 f4 28.Qxf4 Nxf2 29.Ne3 Nd3 30.Bxd3 Qxd3 31.Kh1 Re4 32.Qg5 Bc6 33.Bb2 Qxd2 34.Rad1 Rxe3 25.Rxd2 Rxh3# 0–1[1]

References
  1. Beating the Anti-Sicilians, Joe Gallagher, 1994, ISBN 9780805035759
  • Sicilian Wing Gambit / Roman Blahut, 2018 / 268 p.
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