In Go version missing package declaration "package kata"

this kata is in well chosen kyu I thing

so depressing :( I'll keep working on kata 7

I disagree, 100+ solves in 2 days means it's easy.

I think this task is too difficult for 6kyu because of limit execution time.

Your code is almost working, but you need to compare with a list item and not the original array with itself

this is wrong decision