Chess Puzzle - Series 3021

White to move. How should white proceed ?

Cheparinov, Ivan -VS Wang, Hao  ( Belt )

Source : chessdailynews.com

GM_Knockout said ;

1. R7e6!! fxe6
2. dxe6! Qe7
3. Rd7 R8xd7
4. exd7

- Black resigned 1-0