Knight Sacrifice Puzzle (Rated 1187): Spot Kingside Attack — Mate in 2

This middlegame puzzle is a classic kingside attack where the defender’s king is boxed in by its own pieces and weakened pawn cover. The key idea is to recognize when a direct tactical strike is stronger than grabbing material. Here, the attacking side uses a forcing sacrifice to open lines and overload the king’s defenses, turning a seemingly active queen and rook setup into a mating net. Patterns like pin, skewer, and removal of the defender are all working together.