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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.
If you saw that it works, you didn't need to click 'Submit' the 2nd time...
The action of submitting a solution is irreversible. If you only
attempteda solution, it won't show up in the list of solution, but show that you completed it, which should be good enough.Either way, this isn't a big deal...