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Collections are a way for you to organize kata so that you can create your own training routines. Every collection you create is public and automatically sharable with other warriors. After you have added a few kata to a collection you and others can train on the kata contained within the collection.
Get started now by creating a new collection.
Then multiply would be 10 kyu
Duplicate issue.
Whites are supposed to be simple.
Maybe 9 kyu as is. Perhaps add handling of incorrect input to up the difficulty just a touch?
I agree with the others. The 'hints' are more like instructions and the challenge has been presented in other kata already
The instructions are still rather vague. As the kata is fairly simple, it isn't much of an issue.