Do you realize Fischer almost never has any bad pieces? He exchanges them, and the bad pieces remain with his opponents.
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[Event "rated untimed match"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "Berthold Englisch"]
[Black "Preston Ware"]
[Result "1-0"]
[BlackElo "0"]
[FEN "3k4/R2b2pp/1p1P4/1p2Pp2/1r6/4P3/6PP/6K1 w - - 0 1"]
[SetUp "1"]
[TimeControl "0"]
[WhiteElo "0"]
1. Ra8+ Bc8 2. e6 Rc4 3. d7 b4 4. dxc8=Q+ Rxc8 5. e7+ Kxe7 6. Rxc8 { White
wins with a large material advantage. } 1-0