Hint 1
The level becomes unsolvable if either of the moths at the edges of the level move. Due to how the buttons are placed, you will never be able to get it back on the button without accidently moving it back off shortly after. Is there a way you could move the last moth without disrupting the others?
Hint 2
You can avoid moving the moths already in position if you move the last moth without the light ever entering the bottom row. Note that with enough space, you can circle around your light without actually moving it, which will be useful here.
