Queens Gambit Accepted Mate In 1 Puzzle (Rated 837): Spot Smothered Mate — Mate in 1

This middlegame puzzle is a classic example of a smothered mate pattern, where the defending king is boxed in by its own pieces and has no escape squares. The key idea is that a single knight move can deliver immediate checkmate when the enemy king is trapped by surrounding material. Even in a position where one side is materially behind, tactical geometry can override the evaluation and end the game instantly.