Speed: Bullet to Correspondence Rating:
Sicilian Defense: Najdorf VariationBETA
Nf3 is a slow move that moves a centrally placed knight back to its previous square for no clear benefit. Often the knight prefers the b3 or e2 squares if it gets attacked, since both allow white to include the f pawn in a kingside attack.
The Najdorf Sicilian is one of the most popular variations in all of chess. It is highly theoretical, and leads to extremely double-edge positions with winning chances for both sides. White's lead in development means they can often build up a huge kingside attack, while black has lots of counter-attacking chances on the queenside due to their solid center and flexible pawn structure.