Sicilian Defense
Black's most popular and combative reply to 1.e4.
The Sicilian Defense (1.e4 c5) is the most-played and highest-scoring reply to 1.e4 at every level, fighting for the centre asymmetrically rather than mirroring White's pawn. It covers ECO codes B20-B99, more than any other single opening.
Related terms
See the opening