I never know what to do in these positions.  I'm hoping to get some advice.  I won due to a blunder, but leading up to that is the part in question.

So, here is how I approached it.

OMG, I just realized that I was a whole minor piece down!

I also realized I forgot to click submit on the game.

Fixed.

Kg1

oops i meant kb1

Piano is so high strung...

GET IT? Because pianos have strings...

Kb1 would have been a moved I'd played as white to free the knight for sure, but that doesn't address much.

just goes to show, that somtimes, u gotta watch ur back, especially when ur opponent has mate in one, Open ur eyes llol