1234 Modern Endgames Studies
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f3!
pv 1. f3 Rd7 2. g6 Rxg7 3. f7+ Kf8 4. Kg5 Rxf7 5. gxf7 Kxf7 6. Kf5 Kg7 7. Ke6 Kg6 8. f4 Kh5 9. f5 Kh6 10. Kd6
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