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 "Unknown510"]
[Result "1-0"]
[Annotator "David Hayes"]
[BlackElo "0"]
[FEN "2r3k1/1p1b2pp/p7/q2p4/Pb6/1P3B2/2rN1RPP/1R1Q3K w - - 0 1"]
[SetUp "1"]
[TimeControl "0"]
[WhiteElo "0"]
1. Nc4 R8xc4 2. Rxc2 Rxc2 3. Qxc2 { White wins with a large material
advantage. } 1-0