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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.
hmmm... could that be a hint? looking for hints, here..
This comment is hidden because it contains spoiler information about the solution
Thanks!
I just tried a few solutions and they worked fine. It is not an issue of the kata. 109 guys passed the Ruby kata. You could try once more, it can be a CW problem or something wrong in your code. If there is no error in your code and it doesn't work report this problem at CW: Forum -> Bugs.