Lighting Puzzle

[nullsquared]

Hall Of Fame:
1) nikki
2) Thieum
3) jimmiemalon
4) volca

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Alright, here's a good, quick puzzle

There are two rooms: one room with 3 light switches, and another room with 3 corresponding light bulbs.

- The order or arrangement of the light switches does NOT correspond in any way whatsoever with the order or arrangement of the light bulbs.

- The opposite room is NOT visible from either of the rooms.

- You may reside in each room only once (that is, once you step into the other room, you may NOT go back to the same room).

Your task is to figure out which light switch in the first room corresponds with which light bulb in the second room. You must match up all 3 light switches with the corresponding 3 light bulbs.

Good luck . Oh, and maybe use some kind of spoiler-prevention, we don't want anyone to go "OH, SNAP!"

[nikki]

Good luck . Oh, and maybe use some kind of spoiler-prevention, we don't want anyone to go "OH, SNAP!"

How about Private Messaging?

Oh, and you'll need a Hall Of Fame.

EDIT: One little question: <spoiler removed>

[nullsquared]

EDIT: One little question: <spoiler removed>

<spoiler removed>

[nikki]

Ok, now add me to your hall of fame.

[Thieum]

you should also hide your question because the answer is now pretty obvious

edit: yeah, too late

[nullsquared]

you should also hide your question because the answer is now pretty obvious

Done

[RedEyeCoder]

Nice question, fairly easy though. You should post some more

[Thieum]

Yeah, for example, how many men does it take to change a light bulb?

[volca]

Or:
In a prison, you're about to be executed. You're inside a room with two doors. In front of each door, a guard stands:
* one of the doors will lead you to freedom
* the other will lead you to the execution room, meaning you're dead
* One of the guards always lies
* the other always says the truth

you don't know which combination of guards/doors you're in.

You have one question, answerable yes/no, and one guard to ask that question, in order to find out which door will mean freedom for you.

My favourite

[Kojack]

[volca]

Is it xkcd? I love xkcd

[Kojack]

Yep. I became a fan after reading:

[nullsquared]

Yep. I became a fan after reading:

Edit:

Or:
In a prison, you're about to be executed. You're inside a room with two doors. In front of each door, a guard stands:
* one of the doors will lead you to freedom
* the other will lead you to the execution room, meaning you're dead
* One of the guards always lies
* the other always says the truth

you don't know which combination of guards/doors you're in.

You have one question, answerable yes/no, and one guard to ask that question, in order to find out which door will mean freedom for you.

My favourite

I dunno

[btmorex]

Or:
In a prison, you're about to be executed. You're inside a room with two doors. In front of each door, a guard stands:
* one of the doors will lead you to freedom
* the other will lead you to the execution room, meaning you're dead
* One of the guards always lies
* the other always says the truth

you don't know which combination of guards/doors you're in.

You have one question, answerable yes/no, and one guard to ask that question, in order to find out which door will mean freedom for you.

My favourite

Go up to one guard/door and ask "If I asked the other guard if this is the door to freedom, what would his response be, yes or no?"

If no, take that door. If yes, take the other one.

[Klaim]

Kojack> ROTFL

[nikki]

Or:
In a prison, you're about to be executed. You're inside a room with two doors. In front of each door, a guard stands:
* one of the doors will lead you to freedom
* the other will lead you to the execution room, meaning you're dead
* One of the guards always lies
* the other always says the truth

you don't know which combination of guards/doors you're in.

You have one question, answerable yes/no, and one guard to ask that question, in order to find out which door will mean freedom for you.

My favourite

Go up to one guard/door and ask "If I asked the other guard if this is the door to freedom, what would his response be, yes or no?"

If no, take that door. If yes, take the other one.

Its better to ask "If I asked the other guard if this is the door to the execution room, what would his response be, yes or no?".

That way, you can go in for a 'yes'.

[Minthos]

Your task is to figure out which light switch in the first room corresponds with which light bulb in the second room. You must match up all 3 light switches with the corresponding 3 light bulbs.

edit: Spoiler tag removed since this wasn't the right solution.

Obviously you'll have to first enter the room with the light bulbs, then draw a pair of wires from the socket of each light bulb into the room with the switches, then measure the voltage in each pair of wires, using for example a volt meter or the light bulbs you removed from the first room.

[nullsquared]

Your task is to figure out which light switch in the first room corresponds with which light bulb in the second room. You must match up all 3 light switches with the corresponding 3 light bulbs.

SPOILER WARNING:

Obviously you'll have to first enter the room with the light bulbs, then draw a pair of wires from the socket of each light bulb into the room with the switches, then measure the voltage in each pair of wires, using for example a volt meter or the light bulbs you removed from the first room.

SPOILER END

CHEATING! no wires or voltmeters allowed

[Minthos]

CHEATING! :lol: no wires or voltmeters allowed :lol:

There was nothing stated in the puzzle to preclude it.

[nikki]

CHEATING! no wires or voltmeters allowed

There was nothing stated in the puzzle to exclude it.

But we did it without that, so it can be done, and now you should too.

[nullsquared]

CHEATING! no wires or voltmeters allowed

There was nothing stated in the puzzle to preclude it.

Oh, sorry, I thought you were being a bit sarcastic . I guess it's a solution, but definitely not the "right" solution that involves no tools or ripping out of wires

[Minthos]

SPOILER WARNING:

Well I googled it, and while the "right" solution is undeniably both ingenious and elegant, it is also wrong. There is no guarantee the light bulbs are initially unlit, or that they all have the same initial state. So I dare say, my solution is even more correct than the "right" solution.

SPOILER END

[Kojack]

There was nothing stated in the puzzle to preclude it.

So does that mean that I can bring in a wireless webcam which I can leave in the light room and remotely watch using my pda to observe the effect of the switches?

[Minthos]

There was nothing stated in the puzzle to preclude it.

So does that mean that I can bring in a wireless webcam which I can leave in the light room and remotely watch using my pda to observe the effect of the switches?

:)

I'd assume so - but you forfeit your webcam since you can't reenter the room to retrieve it :p

[betajaen]

Just bring along a couple of mates, one per room, and just shout into the corridor.

However; If you don't have any friends. Just attach the web-cam to a remote control car.