Sicilian Defense: Najdorf Variation, Ivkov Variation (B94)

The Najdorf Variation, Ivkov Variation is a variation of the Sicilian Defense, catalogued as ECO B94. The line runs 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 Nbd7 7. Bc4 Qa5 8. Qd2 e6 9. O-O-O b5 10. Bb3 Bb7 11. Rhe1 Nc5 12. e5, reaching the position shown below after 23 half-moves.

White holds the centre with pawns on e5, and one pawn capture is available, so the structure has not settled yet. Development is level at four minor pieces each. It is Black to move after 12 moves. White has castled while Black’s king is still uncommitted.

On the Sicilian Defense generally: The most popular and aggressive response to 1.e4. Black fights for the center asymmetrically, leading to rich tactical play.

You can play through this variation move by move in your browser — Learn mode walks the line with an explanation at each step, and Drill mode replays it from memory so you find out whether you actually know it. No account is required.

Related Sicilian Defense lines

• Najdorf Variation, Opocensky Variation, Modern Line
• Najdorf Variation, Opocensky Variation, Traditional Line
• Najdorf Variation, Amsterdam Variation
• Najdorf Variation
• Najdorf Variation
• Najdorf Variation
• Najdorf Variation, Neo-Classical Defense
• Najdorf Variation, Polugaevsky Variation
• Wing Gambit, Marienbad Variation
• Wing Gambit, Nanu Gambit
• Wing Gambit, Romanian Defense
• Coles Sicilian Gambit

See all 238 Sicilian Defense variations →

Frequently asked questions

What are the moves of the Najdorf Variation, Ivkov Variation?

The Najdorf Variation, Ivkov Variation goes 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 Nbd7 7. Bc4 Qa5 8. Qd2 e6 9. O-O-O b5 10. Bb3 Bb7 11. Rhe1 Nc5 12. e5. It is a variation of the Sicilian Defense and is catalogued as ECO B94.

What is the ECO code for the Najdorf Variation, Ivkov Variation?

The Najdorf Variation, Ivkov Variation is ECO B94. ECO codes group openings by their move order, so nearby codes cover closely related lines of the Sicilian Defense.

Is the Najdorf Variation, Ivkov Variation good for White?

Stockfish evaluates the position after 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 Nbd7 7. Bc4 Qa5 8. Qd2 e6 9. O-O-O b5 10. Bb3 Bb7 11. Rhe1 Nc5 12. e5 at -0.34 at depth 18, which is a slight pull for Black, within normal opening margins. Engine evaluation is only a starting point — at club level the practical value of a line is mostly about whether you know its plans better than your opponent does.

What kind of position does the Najdorf Variation, Ivkov Variation lead to?

White holds the centre with pawns on e5, and one pawn capture is available, so the structure has not settled yet. Development is level at four minor pieces each. It is Black to move. White has castled while Black’s king is still uncommitted.