Kata

"not knowing what this is from" is an artificial difficulty barrier

"Not knowing where a problem is from" ie. "Not having seen a solution to this problem". This could be applied to literally any kata on this site. Or should we be updating descriptions of all katas with links to any and all papers, videos and articles we find, which explain (and provide a solution to) that specific problem??

What are you trying to argue here? This is a very specific problem with academic researches and established, published "algorithms" as solutions. How many % of katas belong to that category?

(Also, before you even try to argue further: for those that are in CW, this is usually done.)

This is a very specific problem with academic researches and established, published "algorithms" as solutions.

And why does that mean that it should require a link to such solutions in the desription? There are hundreds of katas which are much easier (or trivial), if one already knows some algorithms. See literally any pathfinding kata. Any high ranked mathematical kata. Even text parsing/evaluating has all sorts of research and online solutions. I don't see any of these providing direct links to their solutions, in their descriptions.

This is a suggestion at best.

See literally any pathfinding kata

Pathfinding on what? With what constraints? Using what search method? (Hint: there are many) Is there a pathfinding kata that requires a highly specific algorithm to solve it, so specific that it has an established name? Do you even realize what you're talking about?

Any high ranked mathematical kata

"Any" is a massive overstatement here. You're talking about 10% of them at best.

text parsing/evaluating

Is there a single kata of that, except the "match parenthesis" katas, that requires one specific algorithm to be used to solve it?

Seriously, why are you still arguing? It's clear you don't understand the situation before starting the argument. You're wasting the time of all of us.

Pathfinding on what? With what constraints? ... etc. etc.

Do you not know what any means? Countless variations of pathfinding algorithms have been researched and published about, and any pathfinding kata is going to be significantly easier for people who have read such research or are aware of such algorithms. So according to your logic, that would make it an "artificial difficulty barrier" since users will not know where the valid algorithms are from.

"Any" is a massive overstatement here. You're talking about 10% of them at best.

Lol do you really believe that over 90% of high ranked mathematical katas were made up purely by the authors, and don't exist anywhere else? Fibonacci (and clones), power tower with modulus, linear equations, binomial expansions, differentiation... I'm sorry I am having trouble finding all these unique unresearched mathematical katas that you are talking about, so far they are all extremely well known problems. So I suppose that they should all have links to their solutions in the descriptions too?

It's clear you don't understand the situation before starting the argument

I am arguing directly with what your original issue was. However it seems to me that you have pivoted from your original issue and are now arguing that the issue is that there exists only one single algorithm to solve, and that for some reason this means that the description should link to a solution. (which is also rediculous).

Make up your mind about what the issue is. Is it that people unfamiliar with the problem have an 'artificial difficulty barrier'? Or is it that it requires one specific algorithm? Or perhaps you mean that this 'artificial difficulty barrier' only applies to problems with one solution, and not to problems with two, or more solutions?

It is no wonder that you think I don't understand the issue, when the issue you are arguing has changed every single reply.

I want to search for a solution, but I don't even get what the puzzle is about. Your description is too vague for me. But then again, I'm a user that likes to be spoiled with examples.

Yes this problem is not easy to explain, I tried to make it clear but suggestions are welcome to improve the description. Do you think I should include a link toward a ressource about it too?

Once you find out earlier research on the topic, it becomes clear. Puzzle tag seems acceptable here. Since various algorithms and solutions can be found online, this kata will not likely be approved at a difficult kyu level. Current ranking votes show this. I can approve at current average vote of 5 kyu, and probably should add a link to the wiki page describing this problem.

I see, this is problematic. What do you think is the best way to solve this? Banning global statement is not enough as a mutable object could also make it possible...

Probably something like mixing function calls related to several different simulations so that the functions can't track which call should use which state, but it needs to be done carefully, otherwise various workarounds may remain.

Thanks, I will think about it.

Also I am not a native speaker so my instructions may be unclear, please tell me if something needs to be clarified.