It kinda irritated me that kazan got out alive and leaven didn't... worth, i could see him not making it, but leaven had both talent and direction.
left alone, she'd have died, and she needed kazan for his computer like brain, but in the end in all truth the only thing more cunning CUBE's traps were her knowledge of mathematics and logic.
Heres a new way to view the 'moral behind the story', which i feel somewhat presumptious saying... as i didn't write the damned thing, so take this as an alternative viewpoint:
If those in the world with talent (leaven, worth (ever tried architecture? it ain't easy), Holloway, and Rennes), don't destroy those with nothing to offer who feel they have some right over those that do, then, in addition to those who die due to mistakes (rennes), all the cunning and usefulness of the human mind, body, and spirit will be wasted by those who despise it, and only those with no direction anyways will be left.