Spelling error in title.

The thing with beginner players is that they always go to the kill the queen without thinking, this endgame is a good example. My pawn d3 was blocked by her queen, he couldn't kill my pawn since I would've kill her queen back(So I'm safe on that side). Now since my bishop had a straight line over his king, all was needed is to move my pawn. To do this I needed to force his queen to move offering sacrifice. After this, it was pretty much over for him.

Now I wonder what alternative move he could've made

▲ What?  The bishop from a1 captures it's own queen?

Nf3 is one alternative.