Learn How to Spot Mate in 1: Corner Mate
This chess endgame puzzle is a pure tactical finish: the king is boxed in near the corner, and one forcing move ends the game immediately. In classical chess, these patterns often appear when a rook, knight, and king coordinate to restrict escape squares. The key idea is not material, but king safety and geometry. Once the enemy king has no flight squares and a key defender is overloaded or pinned, a single checkmate can appear out of nowhere.