Rook Endgame Intermediate Puzzle (Rated 1176): Spot a Mate in 1 — Rook Endgame

This chess endgame puzzle is a classic example of a forcing rook tactic: the attacking rook creates an immediate mating net against the exposed king. In classical chess, these positions often look quiet until one precise move ends the game at once. The key idea is that the rook uses open lines, king safety, and limited escape squares to deliver checkmate. Even with equal material, a single tactical shot can decide the game instantly.