Coquio's Mate
Coquio's Mate is a checkmate pattern in which a queen protected by a knight mates a king trapped on the edge of the board by its own pieces or pawns.
- Category
- Tactics
- Difficulty
- Intermediate
- Also known as
- Coquio Mate, Cozio's Mate
Coquio's Mate is a checkmate pattern in which a queen, protected by a knight, mates a king that is trapped on the edge of the board by its own pieces or pawns.
The queen delivers check along a file, rank, or diagonal. The knight defends the queen so that the king cannot capture it. Because the king’s own units occupy its only flight squares, it has no safe square and cannot capture the attacker or block the check.
The pattern most often appears when the defender’s king has been driven to the a- or h-file or to the first or eighth rank. The attacking side typically uses the queen to restrict the king while the knight provides the necessary protection and, in many cases, also helps control additional escape squares.
Key features
- The king is confined by friendly units immediately adjacent to it.
- The queen attacks from a square adjacent to the king.
- The knight is placed on a square that defends the queen.
- No interposition or capture of the queen is possible.
A typical setup has the black king on a8, a pawn on a7, and a rook on b8. White’s queen stands on b7 (checking diagonally) and is defended by a knight on c5.
{"v":1,"type":"board","orientation":"white","fen":"kr6/pQ6/8/2N5/8/8/8/8 b - - 0 1","highlights":[{"square":"a8","color":"bad"},{"square":"b7","color":"focus"}],"arrows":[{"from":"b7","to":"a8","color":"bad"}],"caption":"Coquio’s Mate: the queen checks while the knight protects it.","alt":"Black king on a8 is mated by white queen on b7, protected by knight on c5. Own rook on b8 and pawn on a7 block all flight squares."}
Frequently asked questions
- What is Coquio's Mate?
- Coquio's Mate is a checkmate in which a queen protected by a knight delivers check to a king confined on the edge of the board by its own pieces or pawns.
- Where is the king usually located in this pattern?
- The king is most often trapped on the a- or h-file or on the first or eighth rank.
- How does the knight contribute to the mate?
- The knight defends the queen against capture and can also help control additional escape squares.
- What stops the king from capturing the queen or moving away?
- Friendly units block the king's flight squares, and the position prevents both capture of the queen and any interposition.
About the reviewer
Maria didn't grow up dreaming of chess. She grew up dreaming of getting through bedtime without a meltdown, and chess just happened to be the thing that worked.