OK, something I've been thinking about. And I've come up with a question. Take the following assumptions.
You have a DROD room with a single entrance. (it can be more than 1 square wide if needed)
There are no secret rooms attached, the room has a single way in or out - nothing else
No NPCs or scripted characters are allowed to be present.
Exception: You may have Halph and/or the 39th Slayer present, but no special scripts.
Thus... what room configuration would give rise to the longest possible DROD room? As in the room which cannot be solved in less than N moves, where N is the maximum possible. What elements would be useful in making the room longer than any other?
My current hypothesis is that the longest possible room would involve a stupidly long chain of doors and orbs, in such a way that it's mechanically identical to a Tower of Hanoi and having to shift it back and forth multiple times - each time extracting a single monster from inside it. If you could get say... 30 doors in the configuration, and you have to make at least 5 moves to make a move... you're looking at a *minimum* of 5368709120 moves to unlock the structure already, to say nothing of doing it multiple times.
Discuss. Go
EDIT: I know that DROD (without scripted characters) is a Turing-complete system, but that's only for an infinitely large room. It's not possible to make a room that requires infinitely many moves to solve - there is an absolute limit.
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[Last edited by calamarain at 06-22-2007 08:39 PM]