Zugzwang Intermediate Puzzle (Rated 1122): Win a Rook Endgame — Long Pin Tactics

This chess endgame puzzle centers on a long pin and a forcing exchange that turns active piece placement into a decisive material gain. The key idea is that a rook on an open file can restrict the enemy king and rook at the same time, creating a tactical net where one defender becomes overloaded. In classical chess, these endgame motifs often decide the game because king activity and rook coordination matter more than raw material.