Chess Puzzle - Series 3040

White to move. How should white proceed ?

Pridorozhni, Aleksei VS Bareev, Evgeny

Source : chessdailynews.com

GM_Knockout said ;

1. Nd7!! Bb2
2. Nc5+ Kb4 
3. Nxa4 Kxa4
4. f4 Kb4
5. Kf3 Kc4
6. Ke4 Bf6
7. h6!! Kc5
8. Kf5! Bh8
9. Ke6 Kc6
10. f5 Kc7
11. f6 Kd8
12. f7

-Black resigned 1-0