Instructions

• The goal is to get all five balls out of their boxes.
• Balls can only either be in a box or out (above).
• Clicking a ball will move it only if the box it is in has no top.
• The tops will open an close as you move the balls back and forth.

Questions

• Can you get all the balls out?
• Can you figure out the rules by which the tops open and close?

Note