Learn How to Spot Mate in 1: Mating Net
This middlegame puzzle is a classic example of a mating net: the defending king has too few escape squares, and one forcing move ends the game immediately. Even when material is balanced or favorable, king safety can outweigh everything else. In classical chess, these patterns often appear after a piece has been overworked, a file is opened, or a key square near the king becomes undefended. The winning idea is to look for direct checks that cannot be met by capture, block, or flight.