About this opening
Sicilian Defense: Alapin Variation is an opening in the Encyclopedia of Chess Openings,
classified under code B22. ECO group B (B00–B99)
covers semi-open games (1.e4 with Black playing anything other than 1…e5), with the Sicilian, French, Caro-Kann and Pirc/Modern at its heart. This particular variation is reached
after 3 half-moves from the
starting position, with the move sequence 1. e4 c5 2. c3.
It belongs to the Sicilian Defense family. Within that family this is a sub-variation (the Alapin Variation line).
The opening sequence in prose form: 1.e4 c5, 2.c3. From this position 3 named continuations are recorded in the encyclopaedia, each leading to a distinct theoretical line.