Groningen 2012 Rd2 Hansen,E(CAN)

Here is Hansen's rd2 game against Kuling,Lody(2246).

Kuling,Lody(NED)

Photo-Chessdb

White avoided premature simplification but soon ended up in difficulties.

Hansen,Eric(2539)-Kuling,Lody(2246)
Sicilian 3.Bb5+ Bd7[B52]
SFG 2012 Groningen (2), 12.05.2012

Position 1
The misplaced Na7 leaves white in big trouble. How should black exploit this factor? 

Black to Play

22.Qb6