Learn How to Spot Mate in 1: Rook Sacrifice
This middlegame puzzle is a classic example of a kingside attack turning into a forced finish. White’s heavy pieces are aimed at the enemy king, and the key idea is that the h-file can become a direct route to mate when the defender is pinned or overloaded. In positions like this, material count matters less than king safety: one active rook can outweigh a queen if the king has no escape squares and the final checking square is protected.