Sicilian Defense: Big Clamp Formation
1. e4 c5 2. d3 Nc6 3. c3 d6 4. f4
4… Nf6+0.08
The position is roughly equal. Stockfish 18, depth 18.
Analyze this positionIn the Sicilian Defense: Big Clamp Formation (B20), reached after 1. e4 c5 2. d3 Nc6 3. c3 d6 4. f4, Stockfish 18 recommends 4… Nf6 for Black. The position is roughly equal (+0.08).
Top engine moves
- +0.084… Nf6 5. Be2 e5 6. Nf3 Be7 7. O-O O-O 8. Kh1 c4 9. Qe1
- +0.094… e5 5. Be2 Nf6 6. Nf3 Be7 7. O-O O-O 8. Kh1 exf4 9. Bxf4
- +0.144… g6 5. Nf3 Bg7 6. Be2 Nh6 7. O-O O-O 8. h3 f5 9. Be3
Frequently asked questions
What is the best move in the Sicilian Defense: Big Clamp Formation?
After 1. e4 c5 2. d3 Nc6 3. c3 d6 4. f4, Stockfish 18 at depth 18 recommends 4… Nf6 for Black, continuing 5. Be2 e5 6. Nf3 Be7 7. O-O O-O 8. Kh1 c4 9. Qe1. The position is roughly equal (+0.08). The next best moves are 4… e5 (+0.09) and 4… g6 (+0.14).
Is the Sicilian Defense: Big Clamp Formation a good opening?
Stockfish rates the position at +0.08: 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: Big Clamp Formation?
B20. 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+).