Rook Endgame Puzzle (Rated 1234): Win a Chess Endgame — Discovered Check

This chess endgame is a classic example of using a discovered attack to force the opponent’s king into a bad square while your rook becomes active. In simplified positions, king activity and piece coordination matter more than raw material, so a forcing check can decide everything. The key idea is to create a threat that also improves your own piece placement, especially when a passed pawn and an exposed king are both on the board.