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 "Unknown201"] [Result "1-0"] [Annotator "David Hayes"] [BlackElo "0"] [FEN "r3q1k1/p1p1r2p/1p4pB/3Ppp2/7Q/2n4P/P3BPP1/3R2K1 w - - 0 1"] [SetUp "1"] [TimeControl "0"] [WhiteElo "0"] 1. Bc4 Nxd1 2. d6+ Rf7 3. Qf6 Qf8 4. d7 Qxh6 5. Bxf7+ Kf8 6. Bb3# 1-0