B40

Sicilian Defense: Smith-Morra Gambit Deferred

Chess diagram: Sicilian Defense: Smith-Morra Gambit Deferred after 4. c3

Type a move and press Enter: e4, Nf3, O-O, or from and to squares like g1f3 (e7e8q to promote). The board is also played with the mouse.

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Statistics from Lichess

1,096,719 games: White 50.1% / Draw 4.3% / Black 45.6%

The moves played next. Pick one to see it on the board.
Next moveGamesWhite / Draw / BlackW / D / B
545,596546K
124,423124K
114,546115K
110,164110K
93,45993K
73,90874K
16,19816K
2,8722,872

Rated Lichess games between players rated 1600 to 2500, from the Lichess opening explorer, updated Nov 1, 2026

Engine evaluation

−0.13 The position is about equal

Best play: 4... dxc3 5. Nxc3 d6 6. e5 Nc6 7. Bf4 d5 8. Bd3 Nge7 9. h4

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

By rating

Rating changes little here: White scores 52% under 1400, 50% at 2200 and up (wins plus half the draws).

PlayersGamesWhite / Draw / BlackW / D / B
Under 1400 28K
1400–1799 289K
1800–2199 736K
2200 and up 153K
Masters, over the board 165

Master games

Rated blitz, rapid and classical Lichess games by rating band, and over-the-board games of players rated 2200+ from the Lichess masters database, updated Sep 27, 2026

Overview

Sicilian Defense: Smith-Morra Gambit Deferred (ECO B40, Semi-Open Games) is a gambit in the Sicilian Defense: French Variation, Open, reached after 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. c3 (4 moves).

In 1,096,719 rated Lichess games between players rated 1600 to 2500, White won 50.1%, Black 45.6% and 4.3% were drawn. Black's most played move here is 4…dxc3, in 50% of those games.

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How to play against the Sicilian Defense: Smith-Morra Gambit Deferred

4…Nf6 scores best for Black: 50.9%, with Black winning 48.2% and White 46.5% of 115K games. The most played, 4…dxc3, scores 47.3% in 546K games, and 4…a6 scores lowest: 46.7%. Stockfish's first choice is 4…dxc3.

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

Popularity by year

The Sicilian Defense: Smith-Morra Gambit Deferred has stayed between 0.038% and 0.05% of Lichess games a year since 2016 (0.044% in 2025).

Numbers by year
YearShare of gamesGames
20160.044%15,661
20170.047%25,924
20180.05%39,393
20190.047%58,700
20200.043%126,049
20210.038%150,210
20220.041%152,714
20230.042%156,598
20240.042%151,562
20250.044%152,016
2026 (Jan–Apr)0.044%48,528

Share of rated Lichess games between players rated 1600 to 2500 (blitz, rapid and classical) that reach this position, by year; 2026: January to April. Which openings are rising and falling

Cite this page

Caissa Codex. “Sicilian Defense: Smith-Morra Gambit Deferred (B40)”. Lichess data as of 1 Nov 2026. https://chesscodex.org/openings/sicilian-defense-smith-morra-gambit-deferred