Sicilian Defense: Najdorf Variation, English AttackBETA

Ndb7 is a common move in the English attack once black has played e5 and Be6. This knight can sometimes hop to b6 or c5, but also further defends the f6 knight, ensuring that black maintains control over d5 with their pieces.

The English attack, starting after Be3, f3, Qd2, and O-O-O, leads to slower positions than the more active Bg5 Najdorf. White first plans to castle queenside before launching g4, h4, g5, h5, etc for a ferocious kingside attack. Black on the other hand gets stronger control of the center with e5, and more liberated pieces.