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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 was too lazy to do the block checking and just tried it, there seems to be no test validating the block checks. The only way to need block checks is, if for example the third and fourth row or column get changed with each other.