Neverending Dungeon - Olivia Benson (candycorn)

[candycorn]

So....

{table]|A_|B_|C_|D_|E_|F_|G_|H_|I_
1|X|Y|X|Y|X|Y|X|Y|X
2|A|B|A|B|A|B|A|B|A
3|X|Y|X|Y|X|Y|X|Y|X
[/table]

If I did it in this way... Doing All the X's first, there's no adjacent, so they'll clear in a minute, right?

Once clear, do all the Y's.

Once clear, do all the A's.

Once clear, do all the B's.

The whole thing should take no more than 10-15 minutes per 60 foot section... and that's assuming a 15 foot wide corridor...

How long is the corridor?