Encyclopaedia of Chess Endgames
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c6!
pv 1. c6 Rh7 2. Kg8 Rh6 3. c7 Rxd6 4. c8=Q Kd2 5. Kh8 Ke1 6. Qg4 Rd2 7. Kg7 Rd1 8. Kf8 Rc1 9. Kg8
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