B45
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+
The Sicilian Defense: Four Knights Variation, American Attack is a chess opening classified under ECO code B45. It is reached after the moves 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Nf6 6. Ndb5 Bb4 7. Nd6+.
It belongs to the Sicilian Defense family — one of many ways the line can branch. Understanding the parent system’s plans is the fastest way to play this variation well.
Play the Sicilian Defense: Four Knights Variation, American Attack? See where you go wrong.
Deepline reviews your real games, finds the exact moves that cost you, and trains the fixes.
Analyze my games free →Related openings
Sicilian DefenseSicilian Defense: Amazon AttackSicilian Defense: Big Clamp FormationSicilian Defense: Bowdler AttackSicilian Defense: Brick VariationSicilian Defense: Euwe Attack, Prins GambitSicilian Defense: Gloria VariationSicilian Defense: Grob VariationSicilian Defense: Keres VariationSicilian Defense: King David's Opening