Sicilian Defense: Najdorf Variation

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6

Sicilian Defense: Najdorf Variation is catalogued under ECO code B90. It is reached after 5 moves (10 half-moves): 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6. After the last move it is White to play. White opens 1. e4. It is a named variation of the Sicilian Defense, which has 391 catalogued lines in total. 2 deeper lines continue from here, listed below.

Position shown after the last move; White to play.