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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.
Impossible to pass all tests in Java, the fourth test I did manually and the test is wrong, the random test also doesn't make sense, the color with the most wins is never the winner.