Square all numbers k (0 <= k <= n) between 0 and n.

It says <= so both are included.

it's 'another' game, nobody wants to win

One more special test for you! Use Console.WriteLine and modify sample tests to find your problem

Yep you're right about this. Should have been a zygoteLOL.

Already approved

Fixed kumite here

I think:
9 10
910
91 - 2 digits

My understanding of the description (at least for Clojure) is that the argument actually should've been called zygote...

Difficulty can vary between languages. Most languages do not require lots of boilerplate, so your argument would not apply to them.

Edit: I don't know exactly what you're doing. Could you post your code like:

```

your code...

```

and make sure to click the spoiler content checkbox?

How does that exception cause you to fail excactly?

Can you tell us what the test result looks like (i.e. your result and the expected result)

lol clean the dojo! i am here doing kata's all night chilling and this post almost made me spit my drink out lolololol

Input mutation is never tested in sample tests. You only see that in the tests where the output of your function is tested against the output of a control function.

Thanks!

Fixed.