It is white to move. How should white proceed?
Rf3 seems necessary; on, say, 1.f6 1...Qh1#
I've been searching for a way to lure Black into a K-Q knight fork or discovered check (for example, after Nd3+), but Black has easy and obvious sidesteps. I can't find the "Aha!" sequence.
I don't see anything here other than 1.Rf3 followed by pushing the f-pawn. As far as I can tell, black can't stop this pawn until it reaches f7, and then only by putting the queen on f8. The position I have in mind arises after 1.Rf3 Ke4 2.f6 Qd6 3.f7 Qf8 4.Kg3 a3 and how can black or white make any progress here? White must keep the rook on the f-file, and black must keep the queen on f8 unless he checks, but then must return the queen to f8. Looks like a dead draw to me.