Really enjoyed this kata — simple rules, surprisingly addictive logic.
Thanks for creating such a fun little brain-teaser!

unfortunately the link in the above suggestion is now dead.

It has now been reduced to 3 cells

I vote for 5kyu + Voile's suggestion.

I agree with 5kyu + Viole's suggestion, I think that makes it more interesting.

I created an issue above to discuss the rank of this kata. Please reply there with your suggestions.

Should this kata be approved at 6 kyu or 5 kyu? I suggest to implement Voile's suggestion and limit the number of memory cells to 3 (only one extra memory cell). I also suggest to remove the initial BF code which spoils potential solutions.

(The issue is to prevent an accidental approval.)

The kata got unpublished, and I removed the 1 kyu vote from a cheater.

Currently, the only outlier vote is 3 kyu from the approver.

The 1 kyu vote was cast by a person who got later suspended for cheating, so it is not relevant and should be removed. This leaves us with 5x6kyu, 1x7kyu, and... 1x3kyu cast by the approver as, I believe, the highest rank allowed by the system.

This does not seem right :D

To the person who approved this kata (as well as the 1 kyu one), please try consulting with other users on Discord before approving new katas - your sense of reference seems a bit off.

That being said, the voting situation here also looks a bit questionable. When votes vary wildly, it's worth trying to understand the context: for example, has the kata been reworked several times with its difficulty changing, but users never updated their rank assessments? Or are some votes simply outliers that should be disregarded before finalizing the rank?

Based on the rank assessment votes, this shouldn't be approved at 4kyu.

Votes: https://www.codewars.com/api/v1/code-challenges/5fe399429f548e0023d5c816/assessed-ranks

Enabled in this fork

I've updated it

Way more beautiful slice solution than what I did. I regret making my solution operate on the list in-place.