Learn How to Spot Mate in 1: Back Rank Mate
This puzzle is a classic example of a forcing mating net in the endgame phase, where king safety matters more than material. White’s pieces are already aimed at the enemy king, and the key idea is to use the open lines around the black king to deliver immediate checkmate. In positions like this, a single active rook can decide the game because the king has too few escape squares and its own pieces can become part of the trap.