Any pieces that has poor scope or position should be traded quickly.
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[Event "rated untimed match"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "Unknown"]
[Black "Unknown274"]
[Result "1-0"]
[Annotator "David Hayes"]
[BlackElo "0"]
[FEN "3r1rk1/pb2qp2/1pN2bpp/5p2/2PB1P2/1PQ5/P5PP/3R1R1K b - - 0 1"]
[SetUp "1"]
[TimeControl "0"]
[WhiteElo "0"]
1... Bxc6 2. Bxf6 Qe2 3. Rg1 ( { White can try: } 3. Qb2 Bxg2+ 4. Kg1 Qxb2 5. Bxb2 Bxf1 6. Rxf1 { Black wins with a large material advantage. } ) 3... Qxg2+ 4. Rxg2 Rxd1+ 5. Qe1 Rxe1# 1-0