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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.
Please, elaborate what is not clear?
I guess description is not fully clear, it confuses people
I did not expect this kata to blow up this much when originally posting it :D
I am surprise why people even think this is a math question. It's literally about putting toothpicks together in a shape.