How do you beat level 229 onxploding boxes

Go to the 3rd middle purple on left and hit it once and do the same to the purple next to it, now double tap the blue on the right of the middle red one, now
hit the red on the left...
then hit the red on the right hand side next to the blue one and
then the red one on the right next to the purple then,

tap the purple one in the middle next the red one on the right once,
then the red in the middle and WOW you've completed level 229