Knight endgames can be very tricky, especially when there are passed pawns involved.
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[Event "rated untimed match"]
[Site "?"]
[Date "1962.??.??"]
[Round "?"]
[White "Marovic"]
[Black "Ciric"]
[Result "1-0"]
[Annotator "David Hayes"]
[BlackElo "0"]
[ECO "A00"]
[FEN "2rb3k/pp1q2pp/3p1p2/2rNpP2/P3B3/7R/1Pn2PPP/3Q1RK1 w - - 0 1"]
[SetUp "1"]
[TimeControl "0"]
[WhiteElo "0"]
1. b4 { Pushing the rook from its defense of d5. } 1... Rc4 2. Rxh7+ Kxh7 3. Qh5+ Kg8 4. Ne7+ Qxe7 5. Bd5+ Kf8 6. Qh8# 1-0