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Logic Puzzles by The Logic Fiend
Good day my lamebrained friend. Be addled by my riddles. You may be rewarded or punished for your answers. So beware!

The chamber of 9 doors
Saturday, September 10, 2005
A treasure map that leads to a medieval castle is found. The location of the treasure is indicated to be in a chamber with 9 doors leading to 9 different rooms. Of the 9 doors, only the last 8 are locked.

The doors are evenly spread apart and naturally numbered starting with non-negative integers in a consecutive order. The map indicates that the treasure is behind an even numbered door with an equal number of doors on each side.

As a bonus, there are two chests with an additional 5,000 gold pieces each. The chests are separately located behind two doors farthest from the treasure on each side.

The wood gnome Bob is the magical guardian of the treasures. In order for him to give you the keys which unlock the correct doors; you must tell him the roman numerals for the doors that lead to the treasures as well as the reasoning for not locking one of the doors.
5 Comments.


solution?
Non-negative integers start with "0". So the door numbers are: 0 1 2 3 4 5 6 7 8 Door 4 would have the treasure behind it, and doors zero and 8 have the 5,000 gold pieces bonus. Because zero has no Roman Numeral, it cannot be locked. The Roman numeral is the shape of the keyhole for the doors, so there is no key for the first door. Roman numerals IV and VIII therefore require a key for entry.
» primefactorial on 2005-09-19 08:58:23

w/e
i dunno. way too dumb fer that. i have a question for u. but much simpler. i have read that i would lose popularity points if u visit my site. is this true?
» middaymoon on 2005-10-26 07:07:50

Geeze, b that way.
is there more than one solution to this riddle?
» middaymoon on 2005-11-30 04:23:03

keyholes
Where did it say that the shape of the keyholes are the shape of the Roman Numerals?
» meldoy1991 on 2005-12-20 12:20:17

wow... primefactorial is so smart O_O;;

L8r,

—×Kuri×—
» Kuri on 2006-08-31 12:20:49

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