Some sacrifices are sound; the rest are mine.
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[Event "rated untimed match"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "Unknown"]
[Black "Unknown450"]
[Result "1-0"]
[Annotator "David Hayes"]
[BlackElo "0"]
[FEN "6k1/p5p1/7p/3N4/2Q5/7P/P5PK/1r3q2 w - - 0 1"]
[SetUp "1"]
[TimeControl "0"]
[WhiteElo "0"]
1. Ne7+ ( { White can try: } 1. Nf6+ Kf8 2. Qg8+ Ke7 3. Qxg7+ Ke6 4. Ng4 Qf4+ 5. g3 Qd2+ 6. Nf2 Qxf2# ) 1... Kf8 2. Ng6+ Ke8 3. Qe6+ Kd8 4. Qd6+ Kc8 5. Ne7+ Kb7 6. Qc6+ Kb8 7. Qc8# 1-0