Chess checkmate patterns
What Is the Opera Mate in Chess?
The Opera mate is a checkmate in which a rook on the back rank mates the king, protected by a bishop that also covers the king's escape square. It is named after Paul Morphy's game against the Duke of Brunswick and Count Isouard at the Paris Opera in 1858.
Example
15. Bxd7+ Nxd7 16. Qb8+ Nxb8 17. Rd8#
Morphy's finish. After 15.Bxd7+ Nxd7, he sacrificed the queen with 16.Qb8+, forcing Nxb8, and 17.Rd8 is mate. The bishop on g5 protects the rook and covers e7, and Black's own pieces block the rest.
How the Opera mate works
The rook gives check along the back rank, right next to the king. The bishop does two jobs: it protects the rook so the king cannot capture it, and it covers the escape square diagonally in front of the king. The remaining squares are blocked by the king's own pieces, such as the f7 pawn and the bishop on f8.
It is a close relative of the back-rank mate. The difference is that the rook needs protection because it checks from the square next to the king.
The Opera game
Morphy played the game in a box at the Paris Opera in 1858 against the Duke of Brunswick and Count Isouard, who consulted together. It started 1.e4 e5 2.Nf3 d6, a Philidor Defense, and Morphy won with rapid development, a piece sacrifice on b5, and a series of sacrifices against Black's uncastled king. The final queen sacrifice pulled the knight off d7, opening the d-file for the rook.
The game is still taught as a model of using a lead in development against a king stuck in the center.
How to spot it
Look for an uncastled king on e8 with an open d-file and an enemy bishop on the h4 to d8 diagonal. If the only piece guarding d8 can be deflected or traded, a rook landing on d8 is often mate.
Common questions
What opening was played in the Opera game?
The Philidor Defense: 1.e4 e5 2.Nf3 d6 3.d4 Bg4. Black gave up the bishop for the knight and fell far behind in development.
Is the Opera mate the same as a back-rank mate?
They are related. In both, a rook mates on the back rank. In the Opera mate, the rook is next to the king and protected by a bishop that also covers an escape square.
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