ECO B50 · Sicilian Defense

Sicilian Defense: Modern Variations

1. e4 c5 2. Nf3 d6

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

3. d4+0.44

White is slightly better. Stockfish 18, depth 18.

Analyze this position

In the Sicilian Defense: Modern Variations (B50), reached after 1. e4 c5 2. Nf3 d6, Stockfish 18 recommends 3. d4 for White. White is slightly better (+0.44).

Top engine moves

  1. +0.443. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Nbd7
  2. +0.273. Nc3 e5 4. Bc4 Be7 5. d3 Nf6 6. a4 O-O 7. Nd2 Nc6
  3. +0.183. Bc4 Nf6 4. Nc3 e6 5. d4 cxd4 6. Nxd4 Be7 7. O-O a6

Variations

Frequently asked questions

What is the best move in the Sicilian Defense: Modern Variations?
After 1. e4 c5 2. Nf3 d6, Stockfish 18 at depth 18 recommends 3. d4 for White, continuing cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Nbd7. White is slightly better (+0.44). The next best moves are 3. Nc3 (+0.27) and 3. Bc4 (+0.18).
Is the Sicilian Defense: Modern Variations a good opening?
Stockfish rates the position at +0.44: white is slightly 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: Modern Variations?
B50. 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+).