Castle early and often.
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[Event "rated untimed match"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "Unknown"]
[Black "Unknown413"]
[Result "0-1"]
[Annotator "David Hayes"]
[BlackElo "0"]
[ECO "A00"]
[FEN "r4r2/3p2kp/pN2p1p1/4P1qn/1P1PQp2/P6P/5PP1/R4RK1 b - - 0 1"]
[SetUp "1"]
[TimeControl "0"]
[WhiteElo "0"]
1... f3 ( { Black can try: } 1... Rad8 2. Qf3 { White has the advantage. } ) 2. Qg4 Qd8 3. Nxa8 Rf4 4. gxf3 Rxg4+ 5. hxg4 Nf4 6. Rae1 Qxa8 7. Re4 Qf8 { Black wins with a large material advantage. } 0-1