Anastasia's Mate
Anastasia's Mate is a classic checkmate pattern: a rook and knight combine to mate a king trapped on the h-file (or a-file) by its own pawn. The knight controls the escape squares while the rook delivers the killing blow. Named after the novel Anastasia und das Schachspiel (1803).
The pattern
Typical setup: the king is on h8 (or h7) with a pawn on g7 blocking escape. The knight sits on e7 (or f5), controlling escape squares g8 and g6. The rook delivers mate on the h-file: Rh1#. The key: the pawn on g7 traps its own king, and the knight prevents the king from fleeing to g8 or g6.
How to set it up
Sacrifice to open the h-file (Bxh7+ or Nxf7 ideas). Get a knight to a controlling square near the king. Drive the rook to the h-file for the killing blow. This pattern often arises from kingside attacks in the Sicilian Defense (opening page) and other sharp openings.
Training
Solve Anastasia's Mate puzzles. Study attacking games in the legends database.