Checkmate patternsPhilidor's legacy
Named after François-André Danican Philidor. The classic two-move combination that sets up a smothered mate with a queen sacrifice.
How it works (spoiler)
The smothered mate needs the rook on g8, so the queen goes there herself and invites the capture. Protected by the knight, she cannot be taken by the king — the rook has to do it, and in doing so seals the last escape square.