very much agree!!

Please, don't post cheating code like that, you could be banned for that. I've marked your post as having spoiler content, please edit your post and delete that. Cheating and using a smarter/shorter solution are two different things.

No 5 or 6 kyu kata has a trivial solution like this kata. About demoralizing coders, do you have some statistic about that or is that your opinion? It is a puzzle, not a fundamentals kata, nobody forces you to solve it. Read the post of dbooyah93 below, he is in the 8 kyu range and even if I don't know if he's a beginner or not, I don't think he was demoralized.

From the kata description:

There is no preloaded code to help you. This is not about coding skills; think before you code

Can't you write your solution using code? Go to Solutions and see how many different solutions there are.