... 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