I'm not going to give you a picture here because the array keeps changing when you take away the tiles, but it's pretty simple. Click on the tiles in this order:
-- Yellow group -- All blue groups -- All orange groups -- Two large green groups (leave the two single green squares) -- Two groups of 3 pinks (leave all the rest) -- One group of 3 red in the center (leave the two single red squares) -- All pink groups -- Green group -- Red group