The problem is I never solved a Rubik's cube in my life. I don't even understand basic patterns to move a piece from A to B without moving other pieces.

I can only do that after I have solved the kata.

why can't you edit them?

Rank inflation is a thing to consider too

This is a selffulling propecy. Skrew this inflation :)

Your 2x2 kata is probably also 4, no?

Those shouldn't be deleted, even if it were possible. Once published, your submission is part of the historical record.

done

The last two sample tests need to be changed :

n_vals = [[1, 0], [2, 3], [3, 18], [4, 60], [5, 150], [342, **420115062**], [56753, **386209565**]]

Example tests are still wrong.

Wow, that's the most beautiful comment I've ever had here. Congrats on solving; most would just give up on your situation. I'm really happy that someone would put such effort into something I created.

Personally, I've also been struggling for time due to college; I'm looking forward to reaching 1dan, but my time here is inversely proportional to the time spent studying for tests, and this semester hasn't been kind to me.

I hope you keep up with your training too; it's nice to have someone to race against in the leaderboards. I kind of don't want to pass you just yet, lol. Well, anyways, good luck with your tests and codewars, if you have time for it, that is.

Think about string

Such feature is already there, moderators can hide submitted solutions. And yes, this function is used to handle spoilers. But such spoiler solution has to be reported first, so mods know what to hide :)

hidden.

possibly make it a feature to hide solutions after submitting?

'won't happen. The first use of it would be copycats trying to hide the fact they are cheating.