This is a very test of intellectual game, every game off will give you some grid, the grid will be rotating the channel, if the electricity through, will be lit. And each level has at least one master switch is permanently charged, it can always be rotating. Your goal is to bring all channels to connect up, and they have the power through (powered pathway with white). Each channel can choose to turn left or right, how to plan a move step is the key to this game!