The combination is the heart of chess.
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[Event "rated untimed match"]
[Site "?"]
[Date "1958.??.??"]
[Round "?"]
[White "Perez"]
[Black "Silans"]
[Result "1-0"]
[Annotator "David Hayes"]
[BlackElo "0"]
[FEN "3r3k/R4p1p/1Q2bqpP/8/8/3p3N/5PPK/8 w - - 0 1"]
[SetUp "1"]
[TimeControl "0"]
[WhiteElo "0"]
1. Rxf7 Qxf7 ( { Black can try: } 1... d2 2. Rxf6 d1=Q 3. Rf8+ { Clearing the
long diagonal. } 3... Rxf8 4. Qb2+ Qd4 5. Qxd4+ Rf6 6. Qxf6+ Kg8 7. Qg7# ) ( { Black
can also try: } 1... Qd4 2. Qxe6 d2 3. Qe7 Qd6+ 4. Qxd6 d1=Q 5. Qf6+ Kg8 6. Qg7# ) ( { Black can also try: } 1... Qe5+ 2. f4 Rb8 3. Rb7 Rxb7 4. Qxb7 Qd4 5. Qb8+ Bg8 6. Ng5 Qf6 7. Nf7+ Qxf7 8. Qe5+ Qg7 9. Qxg7# ) 2. Qxd8+ Qg8 3. Qf6+ Qg7 4. Qxg7# 1-0