... the initial position is decisive Zugzwang.
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[Event "rated untimed match"]
[Site "?"]
[Date "1899.??.??"]
[Round "?"]
[White "Gulyaev"]
[Black "Study"]
[Result "1-0"]
[Annotator "David Hayes"]
[BlackElo "0"]
[FEN "B7/8/8/8/8/7N/4K1pp/7k w - - 0 1"]
[SetUp "1"]
[TimeControl "0"]
[WhiteElo "0"]
{ Here is a mate in 4.|Can you find the mate in three? } 1. Kf3 ( 1. Ng5 Kg1 2. Nf3+ Kh1 3. Kf2 g1=Q+ 4. Nxg1# ) 1... g1=Q 2. Nf2+ Qxf2+ 3. Kxf2# 1-0