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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.
Which language did you try it in? I suppose that some are rather more difficult than others—but yes, it might well deserve a difficulty bump. I'm going to try it in Clojure, will probably never finish, but here goes anyway!
Agreed. Wish I'd thought of dropping the obvious unnecessary keyword! I started at about 500 chars!
This kata was brutal. I started from 390 chars and had to cut 110 from my solution. I almost gave up. I think is one of the hardest 3 kyu kata I did