Encyclopaedia of Chess Endgames
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Rc7+!
pv 1. Rc7+ Kf6 2. Kc4 Re3 3. Rc6+ Ke7 4. Rb6 Kd7 5. Kd5 Re5+ 6. Kc4 Nb4 7. Rh6 Nc2 8. Rh7+ Kc6 9. Rh6+ Kb7
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