Zukertort Opening Black Mustang Defense Hanging Piece Puzzle (Rated 1027): Spot Back Rank Mate — One-Move Tactic

This middlegame puzzle is a classic example of a back rank mate pattern where king safety matters more than material. White’s pieces are loose, the rook on b1 is hanging, and the black rook has a direct route to the first rank. When the opponent’s king is boxed in by its own pieces and has no escape squares, a single forcing move can end the game immediately. These are the kinds of tactical refutations that decide classical chess games and blitz alike.