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Topic: George Penney's Chestnut
Replies: 1   Last Post: Jun 17, 1996 11:29 AM

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Michael Wodzak

Posts: 182
Registered: 12/3/04
Re: George Penney's Chestnut
Posted: Jun 17, 1996 11:29 AM
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> The solution, to save George Penny both from further embarrassing himself
> and from the pecuniary discomfort of dispensing CRAKKER JACKS to the
> hundreds in this group who are quite capable of solving it, is
> Ask either guard which door the OTHER guard would say leads to freedom,
> and then exit the opposite door.
> daan

Perhaps this is tougher:

Same scenario but with n doors, k of which are fatal, n-k not.
n guards, s of whom always tell the truth, n-s always lie.
For a given n, k and s, how many questions are needed to be certain of
going through a safe door?


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