Najdorf Sicilian, Poisoned Pawn Variation

+125%
B971.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bg5 e6 7.f4 Qb6
Feb 20, 2026
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TL;DR

Black launches a direct attack on the b2 pawn. White should defend it with 8. Nb3 or leave it to the enemy with 8.

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Najdorf Sicilian, Poisoned Pawn Variation: A Complete Guide
Najdorf Sicilian, Poisoned Pawn Variation - Opening Moves
Summary

The Najdorf Sicilian, Poisoned Pawn Variation arises after 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bg5 e6 7.f4 Qb6 and falls under ECO code B97. With the queen move, Black immediately targets the b2 pawn. White can either protect it with 8. Nb3 or allow it to be captured by playing 8. Qd2. The variation rose to prominence in the 1960s when Fischer championed the Black side. Fischer's concept was that by snatching the pawn, he could then rely on his exceptional endgame technique to weather White's significant developmental advantage, eventually converting the extra pawn and the bishop pair into a winning position. With 168,685 Lichess games across all rating levels, it is a specialized opening choice.

History and Notable Players

It arises from the Najdorf Sicilian: 1.e4 c5 2.Nf3... 7.f4. Among the most prolific practitioners on the White side are Thomas Luther (23 games), Jonny Hector (20 games), Jan H Timman (16 games). On the Black side, notable exponents include Igor A Novikov (35 games), Peter Szekely (23 games), Miguel Angel Quinteros (22 games).

Statistics

Based on 168,685 Lichess games across all rating levels:

  • White wins: 46.8%
  • Black wins: 48.2%
  • Draws: 5%

The statistics show a roughly balanced opening where both sides have equal chances.

Common Mistakes to Avoid

  • Ignoring the opponent's kingside attack: In many Sicilian lines, White will castle queenside and push pawns toward your king. If you don't create counterplay on the queenside or in the center, White's attack will arrive first.

Practice on Chessiverse

The best way to learn the Najdorf Sicilian, Poisoned Pawn Variation is through practice. On Chessiverse, you can play chess against computer opponents from any opening or custom position. Our AI bots range from beginner to grandmaster level, each with unique playing styles — from aggressive attackers to solid defenders. Choose a bot that matches your rating and work your way up as you master the opening's key ideas.

Quick Facts

Main Line1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bg5 e6 7.f4 Qb6
FENrnb1kb1r/1p3ppp/pq1ppn2/6B1/3NPP2/2N5/PPP3PP/R2QKB1R w KQkq - 1 8
DifficultyExpert
Style

Aggressor openings create immediate tension and look for direct attacks. These lines are designed to put pressure on the opponent from the very first moves, often leading to unbalanced positions.

168,685games on Lichess
46.8%
5%
48.2%
White wins Draws Black wins

Top Players

As White

Data from Lichess opening explorer (blitz & rapid)

Most Popular At2500
SharpnessSharp

Popularity by Rating

Percentage of all games at each rating bracket that feature this opening.

Data from Lichess opening explorer (blitz & rapid games)

Theory Adherence by Rating

How often players choose the single most popular move at this position. Higher = more predictable play.

White to move after the opening line

Popularity Over Time

Share of all Lichess blitz + rapid games featuring this opening, by year.

Top Moves by Rating

White to move after the opening line

RatingMost Popular2nd3rd
400Qd255.6%e511.1%Bxf611.1%
1000Qd231.5%e522.5%b312.4%
1200Qd229%Nb314.5%Bxf614.2%
1400Qd230.4%Nb320.1%Bxf616.7%
1600Qd232.1%Nb324.6%Bxf616.3%
1800Qd242.2%Nb326.9%Bxf611.7%
2000Qd250.6%Nb326.1%a39.3%
2200Qd256.6%Nb322%a311%
2500Qd260.8%Nb314.9%Qd311.2%

Popularity by Time Control

Bullet
<0.01%47K
Blitz
<0.01%150K
Rapid
<0.01%18K
3% more decisive in bullet
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Frequently Asked Questions

What is the Najdorf Sicilian, Poisoned Pawn Variation?

The Najdorf Sicilian, Poisoned Pawn Variation begins with 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bg5 e6 7.f4 Qb6 and is classified under ECO code B97. Moves: 1.

Is the Najdorf Sicilian, Poisoned Pawn Variation suitable for beginners?

The Najdorf Sicilian, Poisoned Pawn Variation involves significant theoretical preparation and sharp tactical play. While beginners can learn the basic ideas, it is more commonly recommended for intermediate and advanced players who are willing to invest time in studying specific lines. For practice, our lower-rated bots offer a forgiving environment to learn the patterns.

What are the win rates for the Najdorf Sicilian, Poisoned Pawn Variation?

Across 168,685 Lichess games, White wins 46.8% of the time, Black wins 48.2%, and 5% are drawn. Notable master practitioners on the White side include Thomas Luther and Jonny Hector. On the Black side, Igor A Novikov and Peter Szekely are among the most frequent practitioners.

How can I practice the Najdorf Sicilian, Poisoned Pawn Variation?

On Chessiverse, you can practice the Najdorf Sicilian, Poisoned Pawn Variation by playing against our 600+ AI bots. Each bot has a unique playing style and opening repertoire, so you can find the perfect sparring partner for any level.

Written by

Chessiverse
Chessiverse TeamOpening Guides

Expert chess content backed by opening theory and our database of 600+ AI bots with unique playing styles and opening repertoires.

Practice This Opening on Chessiverse

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