Sicilian Defense Alapin Variation Puzzle (Rated 956): Clear — Pin Tactic
A clearance tactic removes a key obstacle so another piece can exploit a line, pin, or skewer. In this middlegame, the queen’s placement creates pressure against the opposing queen and king at once. The critical idea is to recognize that the apparent attacking piece is also vulnerable, and that capturing it changes the balance immediately. Once the line is cleared, the opponent’s queen becomes overloaded and the resulting exchange leaves Black with a decisive material advantage.