Discovered Attack Puzzle (Rated 1011): Win a Chess Endgame — Discovered Attack

This chess endgame shows how a quiet-looking position can hide a forcing tactical shot. The key idea is a discovered attack: one pawn move opens a line for the rook while also creating a direct threat against the enemy rook and king. In rook endgames, activity matters more than raw material, and a single tempo can decide everything. Even when the position looks balanced, tactical pressure on an exposed piece can turn into a winning conversion.