Arabian mate

Arabian mate coordinates a rook and knight against a king usually placed in a corner or on an edge. The rook stands on a square next to the king and gives check. The knight protects the rook, preventing the king from capturing it, and simultaneously controls another escape square.

The rook also controls squares along its rank and file. Because the board edge already limits the king's movement, the knight's two jobs often complete the cage with very little material. When the king is not exactly in a corner, its own pieces may replace the edge by closing the remaining exits.

The position must satisfy every condition of checkmate: the king cannot flee, capture the rook, or remove the attack with another piece. The knight's protection is essential. Without it, the king may simply take the adjacent rook.

It resembles corner mate, but the usual roles differ: in Arabian mate the rook checks and the knight supports it. In Anastasia's mate, a rook or queen normally attacks along an open line from farther away, while the knight covers two squares and one defending piece blocks another.