Chess Puzzle - Series 3085

White to move. How should white proceed ?

Oparin, Grigoriy VS Gabuzyan, Hovhannes

Source : chessdailynews.com

GM_Knockout said ;

1. Bb7!! Rab6
2. R1d8! R6xb7
3. Rdxe8 Bd7
4. Re8d8 Kf7
5. e8=Q+ Bxe8
6. R1xe8

- Black resigned 1-0