B21

Sicilian Defense: Smith-Morra Gambit Declined, Wing Formation

Chess diagram: Sicilian Defense: Smith-Morra Gambit Declined, Wing Formation after 3…Qa5

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Statistics from Lichess

30,359 games: White 50.0% / Draw 4.0% / Black 46.0%

The moves played next. Pick one to see it on the board.
Next moveGamesWhite / Draw / BlackW / D / B
12,03212K
7,8147,814
7,2567,256
1,5411,541
1,2491,249
9696
8787
8080

Rated Lichess games between players rated 1600 to 2500, from the Lichess opening explorer, updated Oct 31, 2026

Engine evaluation

+0.27 The position is about equal

Best play: 4. Bd2 dxc3 5. Nxc3 Nc6 6. Rc1 e6 7. Nf3 Qd8 8. Bb5 Nge7

Stockfish 19, depth 30, after the line's last move. Scores are in pawns, from White's side.

Overview

Sicilian Defense: Smith-Morra Gambit Declined, Wing Formation (ECO B21, Semi-Open Games) is a declined gambit in the Sicilian Defense: Smith-Morra Gambit, reached after 1. e4 c5 2. d4 cxd4 3. c3 Qa5 (3 moves).

In 30,359 rated Lichess games between players rated 1600 to 2500, White won 50.0%, Black 46.0% and 4.0% were drawn. White's most played move here is 4. Nf3, in 40% of those games.

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How to play against the Sicilian Defense: Smith-Morra Gambit Declined, Wing Formation

The most played answer, 4. Nf3, also scores best for White: 55.0%, with White winning 53.0% and Black 43.1% of 12K games. Of the main answers, 4. Qxd4 scores lowest: 46.2%. Stockfish's first choice is 4. Bd2.

Main answers: those played in at least 5% of these games. Score: White's wins plus half the draws, in rated Lichess games between players rated 1600 to 2500. How to play against other popular openings

Cite this page

Caissa Codex. “Sicilian Defense: Smith-Morra Gambit Declined, Wing Formation (B21)”. Lichess data as of 31 Oct 2026. https://chesscodex.org/openings/sicilian-defense-smith-morra-gambit-declined-wing-formation