Put your Rooks on open files where they have more influence and scope.
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[Event "rated untimed match"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "Unknown"]
[Black "Unknown421"]
[Result "0-1"]
[Annotator "David Hayes"]
[BlackElo "0"]
[FEN "6k1/p3R3/1p1Nb1K1/6P1/1P6/P2p1P2/4r3/8 b - - 0 1"]
[SetUp "1"]
[TimeControl "0"]
[WhiteElo "0"]
1... Bf7+ ( { Black can try: } 1... Bf5+ 2. Nxf5 Rxe7 3. Nxe7+ Kf8 4. Kf6 d2 5. g6 d1=Q 6. g7+ Ke8 7. g8=Q+ Kd7 8. Qc8+ Kd6 9. Qc6# ) 2. Rxf7 Re6+ 3. Rf6 Rxf6+ 4. Kxf6 d2 5. Nc8 d1=Q { Black wins with a large material advantage. } 0-1