Encyclopaedia of Chess Endgames
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b7!
pv 1. b7 Ne5 2. e3+ Ke4 3. Bxe5 Kxe5 4. Kf7 Rf3+ 5. Ke7 Rh3 6. b8=Q Rh7+ 7. Kd8 Rh8+ 8. Kc7 Rxb8 9. Nxb8 Ke4
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