What's New

Optimized for 4-inch iPhone screen.

App Description

An app for bright and extremely determined people.

Consider a night city. Some windows are lit, some are dark. Due to a construction feature, it is not possible to switch light in a single window as the switches turn light in all its adjacent windows, too. Help the inhabitants to get light On in all their windows! Or send them all to bed...

That's not that easy, but possible. Do not give up easily! You can develop your own algorithm. At least use Magic and follow it to solve the puzzle, this is a pure relax in this case.

- Universal for iPhone and iPad;

- 4 levels of difficulty for iPad and 3 levels for iPhone;

- Fun animated reward when the puzzle has been solved;

- Professionally recorded wonderful energetic background music;

- Great for logic and algorithmic thinking development, for entertainment;

- Highly relaxing;

- Makes you feel bright!

- Great as a gift app.


About this app...

The algorithm of solving the puzzle was developed by a Russian school boy in his school year maths project.

iPhone Screenshots

(click to enlarge)

Windows screenshot 1 Windows screenshot 2 Windows screenshot 3 Windows screenshot 4 Windows screenshot 5

iPad Screenshots

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Windows screenshot 6 Windows screenshot 7 Windows screenshot 8 Windows screenshot 9 Windows screenshot 10

App Changes

  • April 10, 2012 Initial release
  • April 24, 2012 New version 1.1
  • November 05, 2016 New version 1.2