the explanation in the kata you provided is way better than in the current one ))

Why not, could you explain?

https://tour.golang.org/moretypes/7 Strings are also slices (of runes)

a[low : high]

if "high" is omitted then it points to the end of "a"

For example:

a := "hello world"
println(a[6:]) // "world"     

Please explain the last line. I new to the language and don't really understand what does : do.

The descriprion of this kata has issues.....

I think it would be interesting and helpful if users were able to see the statistics of different kind.
For example:

1. Which language is the most popular.
2. In which language are katas solved with a higher percentage.
3. In which language are katas solved with a lower percentage.
   ...
   I am sure the community would be able to come up with other great questions.

did the same exact thing)))