ECO B40 · Sicilian Defense

Sicilian Defense: Smith-Morra Gambit Deferred

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. c3

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

4… dxc3−0.23

The position is roughly equal. Stockfish 18, depth 18.

Analyze this position

In the Sicilian Defense: Smith-Morra Gambit Deferred (B40), reached after 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. c3, Stockfish 18 recommends 4… dxc3 for Black. The position is roughly equal (−0.23).

Top engine moves

  1. −0.234… dxc3 5. Nxc3 Nc6 6. Bf4 Bb4 7. Bd6 Nf6 8. Bxb4 Nxb4 9. Qa4
  2. +0.104… Nf6 5. e5 Nd5 6. cxd4 d6 7. Bd3 dxe5 8. Nxe5 Nd7 9. O-O
  3. +0.324… Nc6 5. cxd4 d5 6. e5 Nge7 7. Bd3 Nf5 8. Bxf5 exf5 9. Nc3

Frequently asked questions

What is the best move in the Sicilian Defense: Smith-Morra Gambit Deferred?
After 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. c3, Stockfish 18 at depth 18 recommends 4… dxc3 for Black, continuing 5. Nxc3 Nc6 6. Bf4 Bb4 7. Bd6 Nf6 8. Bxb4 Nxb4 9. Qa4. The position is roughly equal (−0.23). The next best moves are 4… Nf6 (+0.10) and 4… Nc6 (+0.32).
Is the Sicilian Defense: Smith-Morra Gambit Deferred a good opening?
Stockfish rates the position at −0.23: the position is roughly equal. 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: Smith-Morra Gambit Deferred?
B40. 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+).