A knight on the rim is dim.
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[Event "rated untimed match"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "Unknown"]
[Black "Unknown514"]
[Result "0-1"]
[Annotator "David Hayes"]
[BlackElo "0"]
[FEN "2r3k1/1B4pp/p4n2/5R2/1P1p2P1/Pq1P3P/5Q2/6K1 b - - 0 1"]
[SetUp "1"]
[TimeControl "0"]
[WhiteElo "0"]
1... Qb1+ ( { Black can try: } 1... Rc1+ 2. Kh2 Rc2 3. Bd5+ Qxd5 4. Qxc2 Qd6+ 5. Kg2 { White wins with a large material advantage. } ) 2. Kg2 Rc2 3. Bd5+ Kh8 { Or, Kf8 is winning. } 4. g5 Rxf2+ 5. Rxf2 { Black wins with a large
material advantage. } 0-1