Arabian Mate is the oldest checkmating pattern in the game. It is done with a Knight and Rook combo. The Rook gives the checkmate with the Knight preventing the Rook from being captured.
The Arabian mating pattern has more significance in the history of Chess than others. This mate has been mentioned in ancient Arabic manuscripts. It is actually derived from an older version of Chess before the game migrated to Europe where the Knights and Rooks were the most powerful pieces on the board.