... the initial position is decisive Zugzwang.
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[Event "rated untimed match"]
[Site "?"]
[Date "1962.??.??"]
[Round "?"]
[White "Boiser"]
[Black "Vogt"]
[Result "0-1"]
[Annotator "David Hayes"]
[BlackElo "0"]
[FEN "2kr4/pp1r1pp1/1qp1p2p/4Pn1P/4QP2/1B5R/PPP3P1/2K2R2 b - - 0 1"]
[SetUp "1"]
[TimeControl "0"]
[WhiteElo "0"]
1... Qf2 2. Qe1 ( { White dare not capture the queen: } 2. Rxf2 Rd1# ) ( { White
can try: } 2. Rf3 Qd2+ 3. Kb1 Qd1+ 4. Rxd1 Rxd1# ) 2... Ne3 3. Rxe3 ( { White can
try: } 3. Rf3 Qxe1+ 4. Rxe1 Rd1+ 5. Rxd1 Rxd1# ) 3... Rd1+ 4. Qxd1 Qxe3+ 5. Qd2 ( { White can try: } 5. Kb1 Rxd1+ 6. Rxd1 { Black wins with a large material
advantage. } 6... Qxf4 { Black wins with a large material advantage. } ) 5... Qxd2+ 6. Kb1 Qd1+ 7. Rxd1 Rxd1# 0-1