My colleague Beaufort challenged me for a chess game, Since he is professional he advised me that “In this game stability is the key.” Can you find the final position in this situation?

Author: Kartik Gupta

White-to-play, Mate-in-4-moves the pieces are on the board as follows:

White: Kh8
Qa3
Rf1
f2 Black: Kh2 Bb8,and Bh5 c3, f3, g4, f6 FLAG FORMAT:DSC{[a-zA-Z0-9_]+}

Original writeup (https://medium.com/@sachalraja/deconsrtuct-f-gambit-challenge-writeup-8d526d4e8c60).