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#1 bonanova

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Posted 25 January 2008 - 10:52 AM

A building has 16 rooms, as shown; each room is occupied by a living person.
There is a door between all rooms with a common wall: you can move to a N S E or W [only] adjoining room.
The room in the northeast corner has the only door that exits the building.
There is no basement, no attic, no tunnel, no roof exit, no secret passageway.
-> the only building exit
+- -+- -+- -+- -+
| p | p | p | p |
+- -+- -+- -+- -+
| p | p | p | p |
+- -+- -+- -+- -+
| K | p | p | p |
+---+---+---+---+ _linenums:0'>+---+---+---+---+| p | p | p | p <strong class='bbc'>-> the only building exit</strong>+- -+- -+- -+- -+| p | p | p | p |+- -+- -+- -+- -+| p | p | p | p |+- -+- -+- -+- -+| <strong class='bbc'>K</strong> | p | p | p |+---+---+---+---+
The person in the southwest corner is a killer. None of the other persons is a killer.
If the Killer enters a room occupied by a living person, he immediately kills that person .
The killer will not enter a room occupied by a dead person. Curiously, he finds the sight of blood distasteful.

A neighbor hears screams and calls 911.
The police arrive and find a dead body in each of the 15 rooms marked "p".
The Killer was not found.

How did the killer manage to escape? Trace the path he took through the rooms.
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The greatest challenge to any thinker is stating the problem in a way that will allow a solution.
- Bertrand Russell

#2 roolstar

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Posted 25 January 2008 - 12:48 PM

-> the only building exit
+- -+- -+- -+- -+
| p | p | p | p |
+- -+- -+- -+- -+
| p | p | p | p |
+- -+- -+- -+- -+
| K | p | p | p |
+---+---+---+---+ _linenums:0'>+---+---+---+---+| p | p | p | p <strong class='bbc'>-> the only building exit</strong>+- -+- -+- -+- -+| p | p | p | p |+- -+- -+- -+- -+| p | p | p | p |+- -+- -+- -+- -+| <strong class='bbc'>K</strong> | p | p | p |+---+---+---+---+


Spoiler for Here we go


Nice one!
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#3 bonanova

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Posted 25 January 2008 - 01:06 PM

Nice job!
Spoiler for Explanation

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The greatest challenge to any thinker is stating the problem in a way that will allow a solution.
- Bertrand Russell




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