Sacrifice Puzzle (Rated 1149): Back Rank Mate — Mate in 3

This chess endgame puzzle is a classic example of a back rank mate idea hidden inside a forcing tactical sequence. The key is that the enemy king has very little breathing room, while the defender’s heavy pieces and pawns restrict escape squares. In positions like this, a queen sacrifice can be the cleanest way to drag the king onto a vulnerable square and remove the last defensive resource. The result is a mating net that ends in a forced checkmate.