Castle early and often.
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[Event "rated untimed match"] [Site "?"] [Date "????.??.??"] [Round "?"] [White "Unknown"] [Black "Unknown88"] [Result "1-0"] [Annotator "David Hayes"] [BlackElo "0"] [FEN "6k1/P4p2/8/2K3p1/4b2p/5n2/8/3R4 w - - 0 1"] [SetUp "1"] [TimeControl "0"] [WhiteElo "0"] 1. Rd5 h3 ( { Black can try: } 1... Bxd5 2. Kxd5 h3 3. a8=Q+ { White wins with a large material advantage. } ) 2. a8=Q+ { White wins with a large material advantage. } 1-0