Loading collection data...
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 used Distinct() and then check the Count() on 9:
If there are 9 different values in a field of Length 9, then you must have all 9 numbers.
Well, it still could be 0 to 8, so I would check on BOTH.