the way that king and queen mates ........ is very weird


and what
And what utter moron would play 1...Qa3?? 1...Kb1! and it's a dead draw. Check on the b-file and I cross-check for a draw.

Why were you peeking at the king and queen mating?
Unnecessary. Lol.
It's a reasonable question, I don't think Lizzie would be to impressed.

You know what's really weird?
why did black sacrifice a queen?

After 1. Kg3 White is threatening mate at f2 or mate on the back rank.
Black can't defend both threats.

After 1. Kg3 White is threatening mate at f2 or mate on the back rank.
Black can't defend both threats.
why did white still win?

After 1. Kg3 White is threatening mate at f2 or mate on the back rank.
Black can't defend both threats.
why did white still win?
Because the starting position (in post #17) is already winning for White.
All Black accomplished by giving up his Queen was to hang on a few moves longer.