Knight endgames can be very tricky, especially when there are passed pawns involved.
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[Event "rated untimed match"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "Unknown"]
[Black "Unknown645"]
[Result "1-0"]
[Annotator "David Hayes"]
[BlackElo "0"]
[FEN "r2q1rk1/pb2nppp/1p6/4Q3/1b1N2PP/1P6/PBPPBn2/1NKR4 w - - 0 1"]
[SetUp "1"]
[TimeControl "0"]
[WhiteElo "0"]
1. Nc6 f6 2. Qe6+ Rf7 3. Nxd8 Rxd8 { White wins with a large material
advantage. } 1-0