Smith Morra Gambit Puzzle (Rated 1082): Pin — Win Material

A pin becomes decisive when a valuable piece cannot move because doing so exposes the king or loses even greater material. In this middlegame puzzle, Black exploits a pinned bishop, a vulnerable queen, and an overloaded defender. The key idea is to use forcing play to increase the pressure, then win a trapped or hanging piece. This is a classic example of a tactical refutation: material count matters less than the immediate coordination of checks, pins, skewers, and discovered attacks.