Paul Morphy mated his father with a castle mate in the Fried Liver Attack:
Castle mate - How to do it easily

Tips:
-You should play one of the weakest bots in chess.com, it makes the wins easier
-Get rid of all their pieces and try not to mate them accidentally
-Promote two pawns to queens, the "corral" them into the file where your rook goes when you long castle.
-Castle and mate them!
WATCH OUT FOR STALEMATE!
Here is an example of what I did to mate. Notice how I lure the king out and then trap him in one file.
you can move rook but castling is cooler
https://www.chess.com/forum/view/game-showcase/checkmate-by-castling
Apparently checkmate by castling can be performed in fewer than 10 moves with the cooperation of both sides.
Tips:
-You should play one of the weakest bots in chess.com, it makes the wins easier
-Get rid of all their pieces and try not to mate them accidentally
-Promote two pawns to queens, the "corral" them into the file where your rook goes when you long castle.
-Castle and mate them!
WATCH OUT FOR STALEMATE!
Here is an example of what I did to mate. Notice how I lure the king out and then trap him in one file.