... the initial position is decisive Zugzwang.
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[Event "rated untimed match"]
[Site "?"]
[Date "1956.??.??"]
[Round "?"]
[White "Westerhagen"]
[Black "Schmaus"]
[Result "1-0"]
[Annotator "David Hayes"]
[BlackElo "0"]
[FEN "3r1k2/p4pp1/2p2q1p/1p3p2/3P1B1P/2P4Q/Pn3PP1/4R1K1 w - - 0 1"]
[SetUp "1"]
[TimeControl "0"]
[WhiteElo "0"]
1. Bg5 hxg5 ( 1... Qd6 2. Bxd8 Qxd8 3. Qxf5 { White wins with a large
material advantage. } ) 2. hxg5 Qxg5 3. Qh8# 1-0