I completely and fully agree with you - this kata is 6kyu at best. I personally feel somewhat at odds with myself now that I pretty much got free points off this kata - I was really hoping for an exciting headscratcher in OCaml.

Based practices.

I feel that this kata is free elo. It is way too easy for 2nd kyu kata. In every other language You have to sweat a lot to find/write solution for 2nd kyu kata (personal opinion). I was just starting in OCaml (8 kyu) and while looking for suitable kata for me i found this. Firstly i thought that there is going to be a trap somewhere and I will spend a lot of time solving it, but i got a little bit upset when i didn't find any. It feels more like 5th/6th kyu katas (easier ones from them) than 2nd kyu…