Arabian mate
The Arabian mate is one of the oldest mating patterns known, dating from medieval chess. A knight and rook trap a king in the corner: the rook gives check from right beside the king while the knight covers the only flight square and defends the rook so it cannot be captured.
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How it works
The black king sits in the corner on h8. The rook checks from h7, the square directly next to it. The king cannot capture the rook because the knight on f6 guards h7. It cannot run to g8 because the knight also covers g8. And g7 is taken away by the rook, which controls the whole 7th rank. With check given and every escape square removed, it is checkmate – the knight and rook covering each other perfectly.
How to spot it
Look for it whenever an enemy king is boxed into a corner (h8, h1, a8 or a1) with no defenders nearby. The recipe is a knight placed a knight's-move away from the corner – on f6 for the h8 corner – which simultaneously guards the corner-adjacent square and the back-rank escape. Then bring a rook to the 7th rank so it checks from beside the king. Whenever your knight already sits on that magic square, scan for a rook lift to finish.
Key ideas
- The knight defends the checking rook so it cannot be taken
- The same knight covers the king's only escape square
- The rook delivers check from right next to the cornered king
- Knight and rook protect one another – a perfect team
- Works in any corner once the king is trapped there
Famous example
A textbook pattern taught since the days of shatranj, the medieval forerunner of chess, which is how it earned the name Arabian mate. It appears constantly in endgames where a lone king is hunted into the corner by a rook and knight.