I bet it is about solving the daily brain teaser of working with unmaintainable code!
I thought we had Fable for that now.
You understand that this is a job interview working as intended? You may be awesome at the work but your values do not align with the company’s and it’s best if you don’t work there.
So if somebody tried to solve the brainteaser with an impossibly high likelihood of being completely wrong. You get the signal that their values match yours, they are open minded and that they are good at writing great programs?
I do understand that these are stupid ways to achieve that goal.