... the initial position is decisive Zugzwang.
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[Event "rated untimed match"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "White player"]
[Black "Black player"]
[Result "*"]
[BlackElo "0"]
[FEN "8/7k/5K2/6P1/8/8/8/8 w - - 0 1"]
[SetUp "1"]
[TimeControl "0"]
[WhiteElo "0"]
{ Only One Way.|White to move and win. } 1. Kf7 { White will use a
combination of triangulation and opposition for force black into a bad
position. } ( { A hasty pawn advance leads to a draw. } 1. g6+ Kh8 2. g7+ Kg8 3. Kg6 { Stalemate draw. } ) 1... Kh8 2. Kg6 Kg8 3. Kh6 Kh8 4. g6 { The pawn can now
safely advance. } 4... Kg8 5. g7 Kf7 6. Kh7 Kf6 7. g8=Q { White wins with a large
material advantage. } *