White to move. Is this a win or draw for white? How should white proceed?
Daily Chess Improvement: R and P Endgame Improvement!
This is one of those endgame you need to know the pattern for
Editor
It is tempting to cut off the black king with 1.Rf1, but you have to realize that 1.Rf1 Rg8+! is a draw because the white king can't advance without leaving the pawn to die.