The combination is the heart of chess.
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[Event "rated untimed match"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "Unknown"]
[Black "Unknown297"]
[Result "1-0"]
[Annotator "David Hayes"]
[BlackElo "0"]
[FEN "k2r4/ppQ2pp1/5np1/PP6/3pPBq1/3P2P1/5PKr/R4R2 w - - 0 1"]
[SetUp "1"]
[TimeControl "0"]
[WhiteElo "0"]
{ Both side are on the attack. Who will win? } 1. Kxh2 Rh8+ 2. Bh6 ( { White can
try: } 2. Kg1 Qh3 3. Bh6 Ng4 4. a6 Qh2# ) 2... Rxh6+ ( { Black can try: } 2... gxh6 3. a6 Qc8 4. Rfc1 Ng4+ 5. Kg2 Qxc7 6. Rxc7 bxa6 7. bxa6 Rf8 8. Rac1 Kb8 9. Rb7+ Ka8 10. Rcc7 Ne5 11. Rxa7+ Kb8 12. Rcb7+ Kc8 13. Ra8# ) 3. Kg1 Rh8 4. a6 Qc8 5. Rfc1 Qxc7 6. Rxc7 bxa6 7. bxa6 Rf8 8. Rac1 Kb8 9. Rb7+ Ka8 10. Rcc7 g5 11. Rxa7+ Kb8 12. Rcb7+ Kc8 13. Ra8# 1-0