Ruy Lopez Exchange Variation Kingside Attack Puzzle (Rated 1153): Spot a Bishop Mate — Checkmate with Bishop and Knight

This puzzle is a classic middlegame mating net where the attacking side uses piece coordination to finish the game immediately. The key idea is that the enemy king has been stripped of safe squares, and a bishop can deliver a direct checkmate by controlling the escape route. Even when material is uneven, tactical patterns can override static evaluation. In classical chess, recognizing king safety weaknesses is often more important than counting pieces.