Pin Puzzle (Rated 1122): Skewer — Win Material

A skewer is a tactical pattern in which a valuable piece is exposed behind another target. The front piece must respond to the attack, allowing the attacker to win material behind it. In this chess endgame, Black combines rook activity with a direct attack on the king and a vulnerable bishop. The key idea is to improve the rook while creating a forced relationship between the king, knight, and bishop. This is a winning combination based on geometry and timing.