Learn How to Spot Back Rank Mate: Mate in 3
This middlegame puzzle shows how a seemingly active position can hide a forcing mating net. The key idea is back rank weakness: when the enemy king has limited escape squares and its own pieces block the flight squares, a forcing queen sacrifice can drag the king into a mating pattern. Here, the attack works because the defender is overloaded and the final rook invasion lands with checkmate on the back rank.