Checkmate by promotion

Here's the link to the game
http://www.chess.com/livechess/game?id=992429177

The annotated version is below

I decided to post this game because of the checkmate by promotion at the end, although sadly it didn't actually happen due to my opponent resigning, it was still forced.

Also of interest is the simultaneous castling and check at the beginning, hope you enjoy the game, feedback is also much appreciated!

I thought you were white so I was confused why you were so happy with the position.  Now I understand xD

I also have a promotion by checkmate, though it was with 3 queens, and I would've totally promoted to a rook.

https://www.chess.com/game/live/58672834117 

https://www.chess.com/game/live/83353100055

heres one

Idk how to paste whole game

Or link:

Ramnikesh1984 vs scknight8 - https://www.chess.com/live/game/108166523548

good job promoting and checkmating other opponents