When you say CKC is it Continental Kennel Club or Canadian Kennel Club?
If he is Continental, then yes he could have a parent, grandparent, or great grandparent that wasn't a yorkie or that was a yorkie mix. See a lot of these "CKC" registered dogs in the states and pet stores.
If he is Canadian, then he is purebred.
He looks like a yorkie to me! Super cute for sure! You will love him no matter what right?
