Any pieces that has poor scope or position should be traded quickly.
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[Event "World Championship"]
[Site "Reykjavic"]
[Date "1972.??.??"]
[Round "?"]
[White "Spassky"]
[Black "Fischer"]
[Result "0-1"]
[Annotator "David Hayes"]
[BlackElo "0"]
[FEN "5k2/3b2p1/1p4qp/p1pPp1p1/P1P1Pn2/2P5/2Q3PP/3BB1K1 b - - 0 1"]
[SetUp "1"]
[TimeControl "0"]
[WhiteElo "0"]
1... Bxa4 2. Qxa4 ( { White can try: } 2. Qd2 Bxd1 3. Qxd1 Qxe4 4. Qd2 Nxg2 5. Bf2 Nf4 6. Bg3 Qxc4 { Black wins with a large material advantage. } ) 2... Qxe4 3. Bf3 Qxe1# 0-1