how do you tell which square you have not cleared if the square
is covered in chocolate?
If you play it on mobile, you can see the targets you didn't
reach after game over. I reckon if you play a particular level
repeatedly, you would notice why you couldn't get it thru.
If there is one thing you should know about chocolate, it will
not fill a space without candy in it, but of course it can fill a
jelly space at the start.