Mate In 3 Puzzle (Rated 1428): Force Mate in 3 — Back Rank Mate

This chess puzzle is a classic middlegame mating net where king safety matters more than material. The attacking side uses forcing checks to drag the enemy king into a cramped corner, then coordinates queen and rook pressure to restrict escape squares. The key idea is not a random sacrifice, but a precise sequence that exploits a vulnerable king, pinned defenders, and limited flight squares. In classical chess, these patterns often decide games instantly.