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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.
I think you mixed up the "lines and needles" approach (https://en.wikipedia.org/wiki/Buffon%27s_needle) with the "square and circle" approach. There is no point in talking about needles here, just points.
The instructions mention
awesomePhrasesbut, at least in Python, the variable is actuallyawesome_phrases.