Giuoco Piano Puzzle (Rated 1085): Pin — Win Material
This middlegame puzzle demonstrates how a pin can turn an apparently material-rich position into a tactical opportunity. A bishop is immobilized because moving it would expose the king to a rook on the open file. The defender is therefore overloaded: the piece cannot retreat, protect itself, or ignore the pressure. By recognizing the pin and calculating the forcing checks that follow, Black converts king exposure into a decisive material gain while keeping the initiative.