[Brashman]

Guess, I got lucky, haha. I should probably go back to challenge 2 and learn how to program these then.

[Phlarp]

On six it takes you back to 4 floors with 2 elevators and the challenge is 40 people in under 60 elevator moves.

The first 5 are easy to "brute force" but six is making me think a bit more.

[pavel_lishin]

I cheated with #6. My elevators wait on the ground floor until they fill up, then they deliver the patrons to their floors. Everyone not on the ground floor... is stuck forever.