changed

That's the point.

The description and sample tests now include all the needed information.

Re-raised as an issue.

Added sample and random tests

Not an issue

There are actual tests. The author just forgot to add the example tests.

Anyways, I've added an example test.

Yeah, String methods weren't allowed!

done

This kata is a puzzle, indeed. You've got to collect hints to figure out the solution.

That's not all, you also can unlock beta solutions and surely if a beta later on gets perhaps a 1kyu/2kyu you get the points and climb up... Two of my harder ones were cheated last time, one including my complete solution whithout change which was not inside the preload part (so here i have no other explanation as unlocking a beta kata?), but only inside the "inital solution part" (so you can find 2 times the same code for different users at: http://www.codewars.com/kata/linear-equations-n-x-m-complete-solution-space-fraction-representation). It's a harder one and same user cheated before another harder one ("Reflection"): http://www.codewars.com/kata/parsing-and-evaluation-of-mathematical-expressions/csharp... Nothing happend, so i think there's really a problem especially for "beta" katas and the ranking and points- award later on...

You can only unlock solutions at your kyu level or one higher. So yes its possible for someone to keep two accounts in sync and to keep unlocking solutions and cheating, but it would be rather tedious.

The Ruby random tests require you to:

a) only have 1 space between words.
b) strip leading and trailing spaces.

Neither of these things are specified in the description.

Either the description should be updated, or the random test cases modified so this condition is never triggered.

Glad you liked it.

See https://codewars.ideas.aha.io/ideas/CW-I-1 and https://github.com/Codewars/codewars.com/issues/123. There's no feature like that at the moment.