Sacrifice Puzzle (Rated 1190): Spot Mate in 3 — Back Rank Mate
This chess puzzle is a classic mating net built around king safety, open lines, and forcing checks. Even in a middlegame position, the attack can feel like an endgame because the board is reduced and the king has few safe squares. The key idea is to use a forcing queen move to drag the enemy king into a worse corner, then coordinate heavy pieces to finish with a back rank mate. These patterns often appear when rooks are active and the defender is overloaded.