Sicilian Defense Swallowstail Mate Puzzle (Rated 834): Spot Mate in 1 — Queen Sacrifice
This middlegame puzzle is a classic example of a forcing mating net built around king safety. White’s pieces are coordinated to exploit the weakened dark squares around the black king, while Black’s own pieces are too cramped to help. The key idea is to look for direct checks that remove the king’s escape squares and use the queen’s power on the f-file and seventh rank. In positions like this, material count matters far less than the immediate tactical threat.