Can you find mate in 5? (White to play and win)

Props to him for not resigning and being a good sport lol

After forever, I’ve finally hit 1000 blitz for the second time (I dropped to 980 on my first)

This dude made me wait like 5 minutes before the autoresign

It wasn't even a dead lost position, I could have blundered all my pieces in those 5 minutes but he wasted both of our time

How is this opening named? Never seen such before.

Why is it a brilliant?

Vote Chess for Beginners 1200 ELO) - Your Move! Rules in Comments.

i can't believe i won this game

both of my two pieces are working. what called this kind of checkmate?

I got this position in the game. What do you think is the right continuation?

The opponent rushed and took the pawn without thinking. What is wrong with this move?

Still very new, but how is this a stalemate? Can I not keep moving my pieces (black) until I take his king? My king seems safe

Any tips appreciated!

Opponent resigned after this