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
![Pastel Mood Light [10 HOURS] Satisfying Color Changing LED Lights screenshot 3](https://i.ytimg.com/vi/Reb7vI8bPHw/mqdefault.jpg)
![[3 Hours Loop] 4K Gradient Mood Lights Purple Orange | Smooth LED Lights for Background screenshot 5](https://i.ytimg.com/vi/PQoLr7eVLUI/mqdefault.jpg)
9Apps 4.9
