ECO B21 · Sicilian Defense

Sicilian Defense: Smith-Morra Gambit Accepted, Morphy Defense Deferred

1. e4 c5 2. d4 cxd4 3. c3 dxc3 4. Nxc3 Nc6 5. Nf3 e6 6. Bc4 a6 7. O-O b5 8. Bb3 Bc5

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

9. e5−0.03

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

Analyze this position

In the Sicilian Defense: Smith-Morra Gambit Accepted, Morphy Defense Deferred (B21), reached after 1. e4 c5 2. d4 cxd4 3. c3 dxc3 4. Nxc3 Nc6 5. Nf3 e6 6. Bc4 a6 7. O-O b5 8. Bb3 Bc5, Stockfish 18 recommends 9. e5 for White. The position is roughly equal (−0.03).

Top engine moves

  1. −0.039. e5 f5 10. a4 b4 11. Nd5 Nge7 12. Qc2 Ba7 13. Nxe7 Qxe7
  2. −0.219. Bf4 Bb7 10. Rc1 d6 11. e5 dxe5 12. Nxe5 Qxd1 13. Bxd1 Bd6
  3. −0.389. Bg5 f6 10. Bh4 Nge7 11. Nd5 Ng6 12. Rc1 d6 13. Bg3 Nce5

Frequently asked questions

What is the best move in the Sicilian Defense: Smith-Morra Gambit Accepted, Morphy Defense Deferred?
After 1. e4 c5 2. d4 cxd4 3. c3 dxc3 4. Nxc3 Nc6 5. Nf3 e6 6. Bc4 a6 7. O-O b5 8. Bb3 Bc5, Stockfish 18 at depth 18 recommends 9. e5 for White, continuing f5 10. a4 b4 11. Nd5 Nge7 12. Qc2 Ba7 13. Nxe7 Qxe7. The position is roughly equal (−0.03). The next best moves are 9. Bf4 (−0.21) and 9. Bg5 (−0.38).
Is the Sicilian Defense: Smith-Morra Gambit Accepted, Morphy Defense Deferred a good opening?
Stockfish rates the position at −0.03: 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 Accepted, Morphy Defense Deferred?
B21. 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+).