1234 Modern Endgames Studies
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Nb4+!
pv 1. Nb4+ Ka5 2. Nc4+ Kxb4 3. Nxd2 Kc3 4. Ne4+ Kb2 5. Kf2 Kb3 6. Bd1+ Kb2 7. Ke1 Ka1 8. Bf3 Kb2 9. Kd1
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