Another popular line of the Sicilian Defense is the Alapin Variation, which arises after the moves:
Mastering the Sicilian Defense: A Move-by-Move Guide (PDF)** sicilian defense move by move pdf
The Sicilian Defense is one of the most popular and aggressive chess openings, used by players of all levels to counter the King’s Pawn Opening. It starts with the moves: Another popular line of the Sicilian Defense is
\[2.c3\]
\[2.Nf3 d6\]
\[1.e4 c5\]