Learn How to Mate in 3: Back Rank Mate
This chess endgame-style middlegame puzzle is a classic example of a back rank mate pattern, where the king’s own pawns become a prison. Even when one side is materially ahead, the game can end immediately if the king has no escape squares and the heavy pieces can invade the first rank. The key idea is to use forcing checks to drag the king into a boxed-in position, then finish with a rook or queen on the back rank.