Passed pawns must be pushed.
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[Event "rated untimed match"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "Unknown"]
[Black "Unknown052"]
[Result "0-1"]
[Annotator "David Hayes"]
[BlackElo "0"]
[FEN "3Qb1k1/pp2r1pp/8/3B4/5p1q/1PP5/P4RPP/7K b - - 0 1"]
[SetUp "1"]
[TimeControl "0"]
[WhiteElo "0"]
1... Kh8 ( { Black can try: } 1... Kf8 2. Rf1 Re1 3. Qd6+ Re7 4. Rxf4+ Qxf4 5. Qxf4+ Bf7 6. h3 { White wins with a large material advantage. } ) 2. Rf1 Re1 3. Kg1 Rxf1+ 4. Kxf1 Qxd8 { Black wins with a large material advantage. } 0-1