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 Eight Gates (Posted on 2006-09-29)
To exit a room, you must open eight doors, that are initially closed. There are nine orbs that act on the doors, as follows:

Orb 1: Toggle door 1 (that is, close it if open, or open it if closed), open door 3 (if already open, leave it that way), and close door 5 (if already closed, leave it that way)
Orb 2: Open 3, close 4, open 7
Orb 3: Toggle 3, close 7, open 8
Orb 4: Open 1, open 3, toggle 5
Orb 5: Close 1, open 4
Orb 6: Toggle 2, open 3, close 5, open 6
Orb 7: Toggle 4 and 5
Orb 8: Open 3, close 7
Orb 9: Close 8

What is the shortest sequence of orbs you must touch in order to get all doors open?

This puzzle appears on level 3 of the "Deadly Rooms of Death (Architect's Edition)" game, also known as "DROD - King Dugan's Dungeon".

 See The Solution Submitted by Federico Kereki Rating: 4.0000 (2 votes)

 Subject Author Date the ways Charlie 2006-09-29 15:39:01 Too much information Leming 2006-09-29 15:14:44

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