Learn How to Spot Mate in 1: Bishop Checkmate
This puzzle is a classic mating net in a middlegame position, where the attacking side has coordinated pieces aimed at the enemy king. The key idea is that one bishop move creates an immediate checkmate because the king’s escape squares are already controlled and the defender cannot interpose or capture the attacker. Even in a materially imbalanced position, king safety can outweigh everything else when the back rank and nearby squares are sealed.