Really nice let's put some solar panel around ahah. The game has a moment when you are halfway that start to ramp up the possibilities around, the memory game overlaps and it becomes really intriguing thinking about where to expand and when. If I may suggest is to add another layer of intricacy for the late game. Then you have a lot of possibilities to take this idea around with more propreties and different kinds.
I found no bug and everything worked smoothly. Sound is not there true?