Castle early and often.
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[Event "rated untimed match"]
[Site "?"]
[Date "1967.??.??"]
[Round "?"]
[White "Sokolov"]
[Black "Ruzhnikov"]
[Result "1-0"]
[Annotator "David Hayes"]
[BlackElo "0"]
[FEN "r1bk1r2/pp2R1p1/3p3p/2p3Q1/3N4/8/PpP2PPP/6K1 w - - 0 1"]
[SetUp "1"]
[TimeControl "0"]
[WhiteElo "0"]
1. Rxb7+ Rf6 ( { Black can try: } 1... hxg5 2. Nc6+ Ke8 3. Re7# ) 2. Nc6+ Ke8 3. Re7+ Kf8 4. Qxg7# 1-0