The combination is the heart of chess.
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[Event "rated untimed match"]
[Site "Tilburg"]
[Date "1737.??.??"]
[Round "?"]
[White "Stamma"]
[Black "Study"]
[Result "1-0"]
[Annotator "David Hayes"]
[BlackElo "0"]
[FEN "8/8/p5r1/1p6/1P1R4/8/5K1p/7k w - - 0 1"]
[SetUp "1"]
[TimeControl "0"]
[WhiteElo "0"]
{ Stamma Study } 1. Rd1+ Rg1 2. Rf1 Rxf1+ 3. Kxf1 a5 4. bxa5 b4 5. a6 b3 6. a7 b2 7. a8=Q# 1-0