White To Play And Win

PLAYING at the Dorset Congress in the Elstead Hotel, Bournemouth.
Started with a draw last night against a 188, but I should have done better.

White to play and win in Spanton (167) - Patrick Duncan (188)

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I played 59.Kf4?? and the game was drawn after 59...Kxc2 60.Kg5 Kc3 61.Kxh5 Kb4 62.Kxg4 Kxb5 63.c7 Nd6 64.Kf4 Kc6 ½-½
Winning was 59.Ke4, and if 59...Kxc2 then 60.Kd5 Nb6+ 61.Kc5, or 59...Nd6 60.Kd5 Nxb5 61.Ne3 etc.