About Switch Riddle
Try to toggle all seven light on with a few moves as possible. But be careful - the neighborhoods will be toggled, too. You should never need more then 7 moves and you can see the nominal step number. It is a tiny riddle, inspired by an exhibit of the Mathematikum Gießen (Germany).
This App is free of advertising. You can find the source code on github.
Download and install
Switch Riddle version 1.3 on your
Android device!
Downloaded 100+ times, content rating: Everyone
Android package:
de.egh.switchriddle, download Switch Riddle.apk