Well, Guardian Moon puzzle..
First try to light as much spheres as you can.
Than, for each sphere that is not yet lit do following thing:
click all spheres in its row and line ( including that unlit one, 7 click total ).
That will lit that one sphere, saving state of all others.
E.g. if you have such picture: ( O - lit, X - unlit )
, you have to click spheres marked with * below:
If you have more then one unlit, just do the same thing for each one.
It could be somewhat confusing, while in game the rows and lines are not really vertical and horizontal, though it works. HTH.