Thanks, I noticed this comment and resolved my first 6kyo kata !

Nothwithstanding Chrono79's comment in this particular instance for a moment and talking more generally...

Dmitri1993PY --> You will find that a kata's difficulty is very approximate and even where the community feels that a kata is way too hard for a particular level often sadly it is too late to change it.

I also like you felt the way you do now. But take heart and keep going.

But be prepared for a wide range of difficulty within each level.

Good luck!

Good Kata, thank you.

Ladys and gentelments, allow me to present. The crappiest code you've ever seen(but it works).

This is mathematic task. Not programming

This series was created in Ruby, where you use some built-ins. Kata rank is shared amongst different languages.

I spent two days to resolve this kata. This is not 8kyu if code it on JS. This is just opinion