Sicilian: Najdorf, 6.Be3 e5 7.Nb3 Be6 8.f3 Be7 9.Qd2 O-O 10.O-O-O

ECO code: B90

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e5 7. Nb3 Be6 8. f3 Be7 9. Qd2 O-O 10. O-O-O

Opening Name: Sicilian Defense: Najdorf Variation, 6.Be3 e5 7.Nb3 Be6 8.f3 Be7 9.Qd2 O-O 10.O-O-O

Moves: 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e5 7. Nb3 Be6 8. f3 Be7 9. Qd2 O-O 10. O-O-O

Description: This line of the Najdorf Sicilian is a classic and highly respected attacking setup for White. By developing the bishop to e3 and supporting the center with f3, White prepares for a strong kingside pawn storm. The queen move to d2 combined with castling queenside (O-O-O) signals White’s intention to launch an aggressive attack against Black’s kingside, often aiming to push g4 and h4 pawns later.

Characteristic of 10.O-O-O: Castling queenside in this position is a hallmark of White’s aggressive strategy in the Najdorf. It places the king safely away from the center and prepares for rapid pawn advances on the kingside to challenge Black’s position.

Attacking or Defensive: As White, this setup is distinctly attacking, focusing on a kingside offensive. Black’s moves (e5, Be6, and castling kingside) are more positional and somewhat defensive, aiming to control key central squares and prepare counterplay, often on the queenside.

Control of the Center: Yes, the opening strongly contests the center. Black’s ...e5 and White’s central pawn presence (especially e4 supported by f3) indicate a battle for central control. White’s setup supports this center while preparing for a flank attack.

Opening Preview

This opening is defined by the position shown on the board below. The moves displayed are a typical sequence that leads to it, but different sequences can reach the same position and still carry the same opening name.

Related Puzzles

Practice puzzles and train your tactics with real positions from games that used the Sicilian: Najdorf, 6.Be3 e5 7.Nb3 Be6 8.f3 Be7 9.Qd2 O-O 10.O-O-O, and sharpen your opening mastery.

Puzzle 1 of 2 - Move #25 black