Chess Codex
Tree path 14 levels King's Pawn Game › Sicilian Defense › Sicilian Defense › Modern Variations › Sicilian Defense › Sicilian Defense › Modern Variations, Main Line › Sicilian Defense: Najdorf Variation › Sicilian Defense: Najdorf Variation › Sicilian Defense: Najdorf Variation › Sicilian Defense: Najdorf Variation › Sicilian Defense: Najdorf Variation › Traditional Line › Sicilian Defense: Najdorf Variation, Main Line
  1. Chess Codex
  2. King's Pawn Game B00
  3. Sicilian Defense B20
  4. Sicilian Defense B27
  5. Modern Variations B50
  6. Sicilian Defense B50
  7. Sicilian Defense B50
  8. Modern Variations, Main Line B54
  9. Sicilian Defense: Najdorf Variation B90
  10. Sicilian Defense: Najdorf Variation B94
  11. Sicilian Defense: Najdorf Variation B95
  12. Sicilian Defense: Najdorf Variation B96
  13. Sicilian Defense: Najdorf Variation B98
  14. Traditional Line B98
  15. Sicilian Defense: Najdorf Variation, Main Line B99 you are here
B99

Sicilian Defense: Najdorf Variation, Main Line

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Overview

Sicilian Defense: Najdorf Variation, Main Line is a named branch in the Semi-Open Games group of chess theory, classified under ECO B99.

The Semi-Open Games group covers semi-open games — replies to 1.e4 where Black declines the symmetrical 1…e5 in favour of an asymmetric pawn structure.

The line arises from 18 plies — specifically the moves 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Be7 8. Qf3 Qc7 9. O-O-O Nbd7.

In the opening tree, this line branches off from Sicilian Defense: Najdorf Variation, Traditional Line, part of the broader King's Pawn Game system.

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ECO code
B99
Group
Semi-Open Games (B)
Plies
18
Parent
Sicilian Defense: Najdorf Variation, Traditional Line

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