Temat: Jakundaf Desert - Co dalej?

I just found it, here it goes :
Prince Questor is exploring the caves of Xanth. At the end of a
tunnel, he finds four doors, he finds a scroll. Here is the message
from the scroll.

Each door conceals one item. The items are a treasure, a rope, a key,
and a lantern. You must find all four items in a particular order to
keep the treasure.

As Questor is reading the scroll, three bats fly in. The first bat
says, "You must find the key before you find the rope." The second bat
says, "If you find the lantern before you find the rope, the treasure
will disappear." The third bat says, "You must find the treasure
last."

As Questor is puzzling over these remark,s three ogres appear. The
first one says, "The rope is not behind the 1st or 2nd door." The
second ogre says, "The treasure is in the room just to the right of
the lantern." The third ogre says, "The key is behind the fourth
door."

In what order should Questor open the doors to keep the treasure?

first bat: key before rope
second bat: rope before lantern

therefore: key before rope before lantern

third bat: everything before treasure

therefore: key before rope before lantern before treasure.

This gives you the right order:

1. key
2. rope
3. lantern
4. treasure

Concerning the ogres:

The third one: key behind door 4
The first one: rope is not behind door 1 or door 2

therefore the rope is behind door 3 or door 4.

But the key is behind door 4, so the rope is behind door 3.

The second one: The treasure is behind the door to the right of the
lantern.

But only doors 1 and 2 are left, so in order to be to the right
of a door you should be behind door 1.

So the treasure is behind door 1 and the lantern is behind door 2.

So all in all, you get this order:

1. door 4: key
2. door 3: rope
3. door 2: lantern
4. door 1: treasure

I believe this could actually relate to the hall of lost doors, since there's loads of similarity's