Sicilian Defense: Four Knights Variation, American Attack
1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Nf6 6. Ndb5 Bb4 7. Nd6+
7… Ke7+0.21
The position is roughly equal. Stockfish 18, depth 18.
Analyze this positionIn the Sicilian Defense: Four Knights Variation, American Attack (B45), reached after 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Nf6 6. Ndb5 Bb4 7. Nd6+, Stockfish 18 recommends 7… Ke7 for Black. The position is roughly equal (+0.21).
Top engine moves
- +0.217… Ke7 8. Nxc8+ Rxc8 9. Bd3 d5 10. exd5 Qxd5 11. O-O Qh5 12. Ne4
- +1.147… Kf8 8. a3 Bxc3+ 9. bxc3 Ne8 10. Be2 f6 11. a4 Nxd6 12. Qxd6+
- +1.407… Bxd6 8. Qxd6 Qe7 9. Qg3 Nb4 10. Bd3 d6 11. Qxg7 Rg8 12. Qh6
Frequently asked questions
What is the best move in the Sicilian Defense: Four Knights Variation, American Attack?
After 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Nf6 6. Ndb5 Bb4 7. Nd6+, Stockfish 18 at depth 18 recommends 7… Ke7 for Black, continuing 8. Nxc8+ Rxc8 9. Bd3 d5 10. exd5 Qxd5 11. O-O Qh5 12. Ne4. The position is roughly equal (+0.21). The next best moves are 7… Kf8 (+1.14) and 7… Bxd6 (+1.40).
Is the Sicilian Defense: Four Knights Variation, American Attack a good opening?
Stockfish rates the position at +0.21: 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: Four Knights Variation, American Attack?
B45. 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+).