"Warp" wrote:
>  The vast majority of people pose the problem like that, and they all get
> it wrong. That's because that is not limiting the number of questions you
> can ask, in which case the problem makes no sense as it becomes trivial.
>
>  In the real problem you can only ask one question, period.

Yes I see that now.

>  (Curiously, that also means that having two guards is redundant. One
> guard is enough.)

Sure, but having two makes the question trickier for ones who are unfamiliar 
with the riddle, because it makes it seem like there are more factors 
involved.

Rune
-- 
http://runevision.com

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