Mating Pattern
Anastasia's Mate
Anastasia's Mate is a picturesque cooperation between a knight and a rook that pins an enemy king against the side of the board. The knight seals the squares beside the king, and the rook delivers the fatal check along an open file. The name comes from Wilhelm Heinse's 1803 novel 'Anastasia und das Schachspiel,' in which the mate famously appears.
1. Rh3#
Anatomy of the mate
The ingredients are a knight and a rook against a king trapped on the edge. Here the knight stands on e7, where it quietly covers both g6 and g8, the only light squares next to the black king. Meanwhile the king's own pawn on g7 blocks its last remaining flight square. The target is walled off before the rook even arrives.
With those escape squares sealed, all that remains is to deliver check down the file the king sits on. Any major piece would serve, but a rook is the classic tool for the job. Because the h-file is open, the rook can crash in from the side and check the king with no way for it to run and no piece able to interpose in time.
The finish
In the diagram White simply plays 1.Rh3#. The rook travels from a3 along the third rank and turns down the open h-file to strike the king on h7. It is a check the king cannot answer, and the game is over on the spot.
Look at each square around the king: g8 and g6 are patrolled by the knight on e7, g7 is occupied by Black's own pawn, and h6 and h8 lie squarely on the rook's file. The black queen on a8 sits helplessly in the far corner, unable to return in time to defend. It is checkmate.
Where the name comes from
This mate owes its name to literature rather than to a famous over-the-board game. It appears in the 1803 novel 'Anastasia und das Schachspiel' by the German writer Wilhelm Heinse, and the memorable label has stuck to the pattern ever since.
In practice the motif arises whenever an enemy king is driven to the edge with a knight a couple of squares away. Train yourself to spot the knight covering two flight squares at once; once the king's last escape is blocked by a friendly pawn, a rook or queen swinging to the open file finishes the job.
Key ideas
- The knight on e7 covers both g6 and g8, sealing the light-square escapes.
- Black's own g7-pawn blocks the king's last flight square.
- The open h-file lets the rook deliver check from the side.
- 1.Rh3# gives check along the file with no interposition possible.
- The distant queen on a8 cannot return in time to defend.
- Look for this whenever a knight sits near an edge-bound king.