Library/Openings/Sicilian Defense/Wing Gambit/Nanu Gambit ECO B20
Opening· 13 plies

Sicilian Defense: Wing Gambit, Nanu Gambit

An entry in the Encyclopedia of Chess Openings (ECO B20), reached after 13 half-moves: 1. e4 c5 2. b4 cxb4 3. a3 d5 4. exd5 Qxd5 5. Nf3 e5 6. c4 Qe6 7. Bd3.

Sicilian Defense: Wing Gambit, Nanu Gambit ECO B20
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Black rook
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Black queen
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White pawn
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End of this line

No further variations branch from this position in our database. To explore neighbouring ideas:

About this opening

Sicilian Defense: Wing Gambit, Nanu Gambit is an opening in the Encyclopedia of Chess Openings, classified under code B20. ECO group B (B00–B99) covers semi-open games (1.e4 with Black playing anything other than 1…e5), with the Sicilian, French, Caro-Kann and Pirc/Modern at its heart. This particular variation is reached after 13 half-moves from the starting position, with the move sequence 1. e4 c5 2. b4 cxb4 3. a3 d5 4. exd5 Qxd5 5. Nf3 e5 6. c4 Qe6 7. Bd3.

It belongs to the Sicilian Defense family. Within that family this is a level-2 branch (the Wing Gambit → Nanu Gambit line). The immediate parent line is Sicilian Defense: Wing Gambit, transitioned via 7.Bd3.

The opening sequence in prose form: 1.e4 c5, 2.b4 cxb4, 3.a3 d5, 4.exd5 Qxd5, 5.Nf3 e5, 6.c4 Qe6. From this position the encyclopaedia records no further canonical continuations — practical play branches into unnamed transpositions or returns to the parent line for alternative ideas.