Originally posted by AlethiaSorry, that's a loss. Black will just bring his king to f5 and then later on queen his pawn. This is a difficult puzzle (although I found it in a russian endgame book for kids written by Beliavsky.)
c7?
1. c7 Kb7
2. c8=Q+ Kxc8
3. Kg6 f5
4. Kxf5 Kd7
5. Kg6 Ke7
6. Kh5 Kf7
Not sure how to continue...
But it is certainly the move I would play in a match.