Learn How to Spot a Mate in 1: Bishop Checkmate
This middlegame puzzle comes from the French Defense and shows how a well-placed bishop can end the game immediately when the enemy king is boxed in. The key idea is that checkmate is not always about brute force material; sometimes one active piece, supported by the position, is enough to finish the attack. Here, Black’s pieces coordinate to create a direct mating net, and the final blow works because the king has no safe escape squares or useful interpositions.