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http://www.xkcd.com/246/
;-)
--
http://blog.orphi.me.uk/
http://www.zazzle.com/MathematicalOrchid*
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On Tue, 15 Jan 2008 14:19:15 +0000, Invisible <voi### [at] dev null> wrote:
>http://www.xkcd.com/246/
>
>;-)
I think that this is more you :)
http://www.xkcd.com/55/
Regards
Stephen
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no way!
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Invisible <voi### [at] devnull> wrote:
> http://www.xkcd.com/246/
It's funny that the problem works even with two doors and just one guard.
(Ie. the guard either always tells the truth or always lies, and you can
ask him only one question.)
--
- Warp
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Invisible wrote:
> http://www.xkcd.com/246/
"Why don't we just shoot one of them, and ask the other one all the
questions we want?"
Regards,
John
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John VanSickle wrote:
> Invisible wrote:
>> http://www.xkcd.com/246/
>
> "Why don't we just shoot one of them, and ask the other one all the
> questions we want?"
>
there are three of them, but indeed shooting them all seems to solve the
problem.
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"andrel" wrote:
> there are three of them, but indeed shooting them all seems to solve the
> problem.
No, their function is not to stop you from entering the passages. They will
let you through all right. The problem is that once you've entered a
passage, there is no way back (for some reason) so you have to choose the
right one the first time. The function of the guards is to give you
information which you may use to figure out which passage to choose.
Oh, and if you're not familiar with the original riddle:
There are two passages of which you must choose one. One of them leads to
freedom, the other one to doom. Once you have chosen one, you are stuck with
it. In front of each passage is a guards. One guard always tell the truth
and one always lies. You don't know which does what. Now you must find out
which passage to choose by asking the guards questions...
Rune
--
http://runevision.com
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Rune wrote:
>
> There are two passages of which you must choose one. One of them leads to
> freedom, the other one to doom. Once you have chosen one, you are stuck with
> it. In front of each passage is a guards. One guard always tell the truth
> and one always lies. You don't know which does what. Now you must find out
> which passage to choose by asking the guards questions...
Solving which one is which is actually easy. You just need to ask one of
them, if he lies precisely to half of the questions. If he speaks true,
he'll of course answer "no". If he always lies, he has to answer "yes".
> Rune
--
Eero "Aero" Ahonen
http://www.zbxt.net
aer### [at] removethiszbxtnetinvalid
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Invisible wrote:
> http://www.xkcd.com/246/
I saw a great solution where the wizard started explaining to everyone
how the logic works and the warrior just shot one of them in the foot.
Left: "Ow! You shot me in the foot!"
Right: "No he didn't!"
Left: "I can't believe you just did that!"
Right: "Yes you can!"
--
Darren New / San Diego, CA, USA (PST)
It's not feature creep if you put it
at the end and adjust the release date.
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Eero Ahonen wrote:
> Rune wrote:
>> There are two passages of which you must choose one. One of them leads to
>> freedom, the other one to doom. Once you have chosen one, you are stuck with
>> it. In front of each passage is a guards. One guard always tell the truth
>> and one always lies. You don't know which does what. Now you must find out
>> which passage to choose by asking the guards questions...
>
> Solving which one is which is actually easy.
The actual puzzle is that you only get to ask one question.
I've also seen it done with three creatures, one who tells the truth,
one who lies, and one who picks at random. Except they don't speak your
language: they speak a language where Jay and Dook mean yes and no, or
maybe no and yes.
The solution is along the lines of "Would the second person answer Dook
to the question of what the third person would answer if and only if the
work Jay means "yes" in my language?" Really convoluted, but it works out.
--
Darren New / San Diego, CA, USA (PST)
It's not feature creep if you put it
at the end and adjust the release date.
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