ECO B20 · Sicilian Defense

Sicilian Defense: Wing Gambit, Nanu Gambit

1. e4 c5 2. b4 cxb4 3. a3 d5 4. exd5 Qxd5 5. Nf3 e5 6. c4 Qe6 7. Bd3

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Black to move. The arrow shows Stockfish’s best move.
Best move

7… e4−0.86

Black is clearly better. Stockfish 18, depth 18.

Analyze this position

In the Sicilian Defense: Wing Gambit, Nanu Gambit (B20), reached after 1. e4 c5 2. b4 cxb4 3. a3 d5 4. exd5 Qxd5 5. Nf3 e5 6. c4 Qe6 7. Bd3, Stockfish 18 recommends 7… e4 for Black. Black is clearly better (−0.86).

Top engine moves

  1. −0.867… e4 8. O-O Be7 9. Re1 Qf6 10. Bxe4 Qxa1 11. Qb3 Qf6 12. axb4
  2. −0.757… Be7 8. O-O e4 9. Re1 Qf6 10. Bxe4 Qxa1 11. Qb3 Qf6 12. axb4
  3. −0.357… Nf6 8. O-O Nc6 9. Re1 Bc5 10. axb4 Bxb4 11. Bb2 O-O 12. Nxe5

Frequently asked questions

What is the best move in the Sicilian Defense: Wing Gambit, Nanu Gambit?
After 1. e4 c5 2. b4 cxb4 3. a3 d5 4. exd5 Qxd5 5. Nf3 e5 6. c4 Qe6 7. Bd3, Stockfish 18 at depth 18 recommends 7… e4 for Black, continuing 8. O-O Be7 9. Re1 Qf6 10. Bxe4 Qxa1 11. Qb3 Qf6 12. axb4. Black is clearly better (−0.86). The next best moves are 7… Be7 (−0.75) and 7… Nf6 (−0.35).
Is the Sicilian Defense: Wing Gambit, Nanu Gambit a good opening?
Stockfish rates the position at −0.86: black is clearly better. Evaluations this early in the game are small, so practical results depend far more on knowing the plans and typical structures than on the engine's number.
What is the ECO code of the Sicilian Defense: Wing Gambit, Nanu Gambit?
B20. ECO codes classify chess openings from A00 to E99; B is the volume for semi-open games (other than the French).

Opening names from the Lichess opening book (CC0). Pieces by Colin M.L. Burnett (GPLv2+).