If your opponent cannot do anything active, then don't rush the position; instead you should let him sit there, suffer, and beg you for a draw.
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[Event "rated untimed match"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "Unknown"]
[Black "Unknown073"]
[Result "0-1"]
[Annotator "David Hayes"]
[BlackElo "0"]
[FEN "4n1k1/3p1r1p/1p4p1/p3p3/1q2P1P1/nPr1NPN1/PKPQ3R/7R b - - 0 1"]
[SetUp "1"]
[TimeControl "0"]
[WhiteElo "0"]
1... Rxe3 2. Qxe3 Nc4+ 3. Kb1 Nxe3 { Black wins with a large material
advantage. } 0-1