Turn Off the Lights
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The purpose of this little game is to turn off all the lights. But the situation is a little bit more complicated than usual: if you press a button, the corresponding light and its two neighbors change their state. How many attempts do you need to turn off all lights?
Contributed by: Edda Eich-Soellner (University of Applied Sciences, Munich, Germany) (March 2011)
Open content licensed under CC BY-NC-SA
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Details
Hint: it is possible to turn off all the lights with at most seven clicks.
Permanent Citation
"Turn Off the Lights"
http://demonstrations.wolfram.com/TurnOffTheLights/
Wolfram Demonstrations Project
Published: March 7 2011