The app illustarates how to solve a problem of switching on a given set of lights.
There is a given set of lights: some of them are turned on, some of them are turned off.
There are switches associated with lights: each switch imapcts on three lights above it - a switch change a state of the light.
The goal is to switch all lights on using minimal number of clicks as fast as possible.
1.new set of challanges
2.minor bugs fixed
9Apps 4.9
