Unlocking answers to last Cody problem?

I've written a valid answer to the last Cody problem, but it is not even close to the best answer. I have no idea how they made this short answer. To unlock it I need to solve another Cody question, but there are none left... :(

Anybody know how to unlock the last question?

Answer 1

[Sean de Wolski]

You can answer other questions (not Cody Challenge Ones) and it will eventually let you see all solutions to that one.

[Cris Luengo]

The community questions keep unlocking the previous community question. I'll keep playing, hopefully that one Cody Challenge question will be unlocked some day. :)

[Sean de Wolski]

Ahh, I see what you're saying. I'll ask the person who knows.