Learn How to Spot Mate in 1: King Safety
This puzzle is a classic mate in 1 built around king safety and a forcing queen check. Even though material may be down, the side to move can finish the game immediately because the opposing king has no safe escape squares and key defenders are overloaded or pinned. In practical chess, these are the moments where calculation beats evaluation: a single forcing move can override a worse material balance and end the game at once.