... the initial position is decisive Zugzwang.
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[Event "rated untimed match"] [Site "Praha"] [Date "1931.??.??"] [Round "?"] [White "Pirc"] [Black "Stoltz"] [Result "0-1"] [Annotator "David Hayes"] [BlackElo "0"] [ECO "A40"] [FEN "r3r1k1/5pp1/p1p4p/2Pp4/8/q1NQP1BP/5PP1/4K2R b K - 0 1"] [SetUp "1"] [TimeControl "0"] [WhiteElo "0"] 1... d4 2. Qxd4 Qa1+ 3. Qd1 ( { White can try: } 3. Nd1 Qxd4 { Black wins with a large material advantage. } ) 3... Qxc3+ 4. Ke2 Qxc5 { Black wins with a large material advantage. } 0-1