Encyclopaedia of Chess Endgames
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Ne4!
pv 1. ... Ne4 2. Kh2 Nf2 3. Kg2 Ng4 4. Rb6 Ne3+ 5. Kf2 Ke7 6. Rb7+ Kd6 7. Rb6+ Kd5 8. Rb5+ Kc4 9. Rb6 Kd4
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