One of the most important things in chess is pattern recognition: the ability to recognise typical themes and images on the board, characteristics of a position and their consequences.
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[Event "rated untimed match"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "Unknown"]
[Black "Unknown506"]
[Result "0-1"]
[Annotator "David Hayes"]
[BlackElo "0"]
[ECO "A00"]
[FEN "1r6/8/1r3k2/2p1p1pp/2PpP3/PR3P2/2K3PP/1R6 b - - 0 1"]
[SetUp "1"]
[TimeControl "0"]
[WhiteElo "0"]
1... d3+ 2. Kc3 Rxb3+ 3. Rxb3 d2 4. Rxb8 ( { White can try: } 4. Kxd2 Rxb3 { Black wins with a large material advantage. } ) 4... d1=Q { Black wins with a large
material advantage. } 0-1