Encyclopaedia of Chess Endgames
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Rd3!
pv 1. Rd3 Kg2 2. Rd2+ f2 3. Kd3 Kg1 4. Rd1+ f1=R 5. Rd2 Rf2 6. Rd1+ Kg2 7. Ke3 Rf3+ 8. Ke2 Kg3 9. Rd8 Rc3 10. Rf8 Kg4 11. Kf2 Kg5 12. Kg2 Rd3 13. Kh2 Rd4
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