Learn How to Spot a Mate in 1: Philidor Defense
This middlegame puzzle comes from the Philidor Defense and shows how quickly a king can be punished when the pawn shield is loose and the queen has access to the h-file. The key idea is a direct mating attack: when the enemy king is exposed and the surrounding pieces cannot help, a single forcing move can end the game immediately. In classical chess, these patterns often appear after overextending on the kingside or ignoring a direct threat to the king.