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Algren
now we know
Joined: Tue Oct 19, 2004 9:31 pm
Posts: 68327
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 The Three Switches The Three Switches
Downstairs in a house are three identical on-off switches. One of them controls the lamp in the attic. The puzzle is to work out which switch controls the lamp.
The rules are as follows. You are allowed to manipulate the switches all you like, and then you are allowed a single trip to the attic. How do you do it?
To clarify: When you are downstairs there is no way to see into the attic, or see reflected light from the attic. Once you have gone to the attic you are not allowed back to the switches.
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| Fri Jul 10, 2015 4:28 am |
 
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MGKC
---------
Joined: Tue Oct 12, 2004 10:42 pm
Posts: 11808
Location: Kansas City, Kansas
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Re: The Three Switches Classic puzzle - always loved this one.
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| Fri Jul 10, 2015 7:29 am |
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stuffp
Keeping it Light
Joined: Wed Apr 08, 2015 8:06 am
Posts: 11622
Location: Bright Falls
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Re: The Three Switches Google it.
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| Fri Jul 10, 2015 9:46 am |
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Chippy
KJ's Leading Pundit
Joined: Tue Oct 12, 2004 4:45 pm
Posts: 63026
Location: Tonight... YOU!
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Re: The Three Switches What do the other two switches do? Do they control two other outlets that I can plug other lamps into?
_________________trixster wrote: shut the fuck up zwackerm, you're out of your fucking element trixster wrote: chippy is correct
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| Fri Jul 10, 2015 10:16 am |
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nghtvsn
Extraordinary
Joined: Fri Mar 11, 2005 7:13 pm
Posts: 11016
Location: Warren Theatre Oklahoma
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Re: The Three Switches I'd assume you determine what the two switches control downstairs first and once that's figured out you can flip the right switch.
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| Fri Jul 10, 2015 10:59 am |
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Mister Ecks
New Server, Same X
Joined: Wed Oct 13, 2004 7:07 pm
Posts: 28301
Location: ... siiiigh...
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Re: The Three Switches It's a riddle designed to bring out the sexist in all of us. The doctor is actually his mother, a woman! Imagine that, a chick being a doctor. Hahaha. Only in a riddle.
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| Fri Jul 10, 2015 11:33 am |
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