Jon Speelman

... the initial position is decisive Zugzwang.

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[Event "rated untimed match"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "Unknown"]
[Black "Unknown502"]
[Result "0-1"]
[Annotator "David Hayes"]
[BlackElo "0"]
[FEN "8/5rk1/p1Qp3r/1p1P3p/2p5/P7/1PP3KP/5B2 b - - 0 1"]
[SetUp "1"]
[TimeControl "0"]
[WhiteElo "0"]

1... Rg6+ 2. Kh3 Rf3+ 3. Kh4 Kh6 4. Be2 ( { White can try: } 4. Qc8 Rg4+ 5. Qxg4 hxg4 6. Kxg4 Rxf1 { Black wins with a large material advantage. } ) 4... Rg4# 0-1