Puzzle of the Day 4 February 2017 |  Find the best move

1. ... Ke8 2. Rf7 Kd8 3. Rh7 Kc8 4. Rh8+ Kb7 5. Rg8 Ka6 6. Rf8 Bd1 7. Rh8 Bc2 8. Rg8 Bb3 9. Rf8 Ba2