No competition, of course, it is from 1960. I looked it up in Wotawa's book and found the intended solution: 1. f8Q! Rxf8 2. gxh! - a nice reversal and the rook move after it even better.
But I wonder if anyone has ever mentioned 1. f8Q! Rf7+! (better, certainly as it appears to lead to a technical win of some difficulty) here. I know Nunn used this study in Endgame Challenge (fairly sure that was the title - one of the few Nunns I don't own) and usually if Nunn with Fritz hasn't seen this as a spoiler, no one has.