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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.
Need a few more edge cases in your tests, in seems. I failed 1 out of 50 about half the time, then came up with a solution that worked 100%.
Agreed. I mean, I could gather that was a possible intention, but the description is less than clear.