Pirc Defense Mate In 1 Puzzle (Rated 1039): Spot Mate in 1 — King Safety

This middlegame puzzle is a pure mating pattern: one side’s king is vulnerable, and the attacking queen has a direct route to deliver immediate checkmate. The key idea is king safety—when the enemy king’s shelter is weakened and key escape squares are controlled, even a seemingly ordinary queen move can end the game at once. In classical chess, these tactics often appear when pieces are overloaded or the defense is too passive.