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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.
It's quite hard to experiment with non-square grid sizes since the code in the link provided does not seem to easily adjust to it.
mind blown. genius!
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