Chess Puzzle - Series 3068

White to move. How should white proceed ?

Agmanov, Zhandos VS Hakobyan, Aram
( Round 2 Of World Junior Championship )

Source : chessdailynews.com

GM_Knockout said ;

1. Rg3!! g6
2. Kh2! Rxf1
3. Rd3 Qxd3
4. Qb8+ Kg7
5. Qe5+ 

-  White won 1-0 ( on time! )