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 "Unknown"]
[Black "Unknown339"]
[Result "0-1"]
[Annotator "David Hayes"]
[BlackElo "0"]
[FEN "8/5p2/R3b1P1/7k/4P1N1/3r1PKp/8/8 b - - 0 1"]
[SetUp "1"]
[TimeControl "0"]
[WhiteElo "0"]
1... Bxg4 2. Ra5+ f5 ( 2... Kxg6 3. Kxg4 f6 4. Ra8 h2 5. Rh8 Rd2 { With a
likely draw. } ) 3. g7 Rxf3+ 4. Kh2 Rf2+ 5. Kg1 Rb2 { Or Rg2+ followed by Rb2. } 6. g8=Q h2+ 7. Kf1 ( { White can try: } 7. Kh1 Bf3+ 8. Qg2 Rxg2 9. Rxf5+ Kg4 10. Rxf3 Kxf3 11. e5 Kg3 12. e6 Rg1# ) 7... h1=Q# 0-1