Mate In 5 Puzzle (Rated 1431): Back Rank Mate — Queen Sacrifice

This puzzle is a classic example of a back rank mate pattern in a sharp middlegame-to-endgame transition. White’s heavy pieces coordinate to overload the defender, remove key protection, and force the enemy king into a cramped rank where escape squares disappear. The position also shows how a queen sacrifice can be the most forcing way to convert activity into mate, especially when rooks are ready to invade and the king’s shelter is compromised.