Chess Opening Theory/1. e4/1...c5/2. Nf3/2...d6/3. d4/3...cxd4/4. Nxd4/4...Nf6/5. Nc3/5...a6/6. Bg5/6...e6/7. f4

= Sicilian Defence, Najdorf Variation = Moves:1.e4 c5 2.Nf3 d6 3.d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6.Bg5 e6 7.f4

Again, Black has to make a strategic choice. Common moves are :
 * /7...Be7/
 * /7...Qc7/
 * /7...Nbd7/

Two very sharp variations are seen at higher levels : /7...Qb6/ (the Poisoned Pawn Variation) and /7...b5/ (the Polugaevsky Variation).

Theory table
.

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5. Nc3 a6 6.Bg5 e6 7.f4