Endgame Study 8: Walking Down the Stairs

Hey everyone, I'm here with today's endgame study, which is truly amazing. See if you can solve it without using the hint, which will be located at the bottom of this post. If you haven't already, make sure to check out some of my other studies which can be found in the side panel of my blog. Enjoy!

Scroll down for hint

 Hint: Let black promote, then win the queen back.

I hope you enjoyed this endgame study, make sure to comment down below if you solved it and if you had any other suggestions or moves you think I missed. Have a great day!!!