Queens Gambit Declined Marshall Defense Mate In 1 Puzzle (Rated 895): Spot Epaulette Mate — Mate in 1
This puzzle shows a classic mating net where the enemy king is boxed in by its own pieces. In these patterns, the key idea is not material gain but the geometry around the king: escape squares are blocked, defenders are overloaded, and a single forcing move ends the game immediately. The position is a strong example of a middlegame tactical finish, where king safety matters more than material count.