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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.
Next time please create a kumite directly on the kata instead, so that the solution is not available for everyone to see.
Using a hash will break in certain cases. Try reading about loop detection on wikipedia or stackoverflow for alternative strategies.
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