Opera Mate - Chess Tactic

 The Opera Mate is a checkmate pattern that was demonstrated by Paul Morphy while watching Opera with the Duke of Brunswick and Count Isouard, in Paris.
Opera Game Wikipedia Page

Opera Mate Chess Article

Opera Mate - ChessFox Article w/Examples

Paul Morphy & The Opera Game - Chessable Blog Article  (Very detailed Move by Move)

Opera Mate LiChess Studies

Checkmate Patterns III - 3 Examples (LiChess Mating Pattern Practice Area)

Opera Mate - 13 Chapter Study (Very Nice w/ Examples and Games)

Opera Mate Video Lessons

Opera's mate - Patterns you must know - 1 Min - Robert Ris

Basic Checkmate Patterns 3 of 3 - Beginner to Chess Master #26 - 15 Min - ChessNetwork

The Most Famous Chess Game Ever Played || "A Night at the Opera"  -6 Min

Opera Mate in Chess - 6 min - GM Simon Williams
Video Below

Bishops Bounty Checkmate Patterns Main Page