My favorite checkmate is when I use a pawn to it.

The game was even but I had a plan to checkmate my opponent with a pawn. I just had to hope for a wrong move.

Here is the game. I had the Black pieces. The links are for the beginning of the game and the end of the game.

https://lichess.org/4XhfQeWa/black#0

https://lichess.org/4XhfQeWa/black#86