By calling it an extreme ringer....... Do you want to tell us that this is NOT a pied, genetically? Whats going on here genetically if not pied? this totally looks like a pied, but if it is NOT A PIED but an "extreme ringer" while looking exactly like a pied, i guess we have to re-write some things in morphology. That would mean there are now 3 genes in the pied complex: pied, leopard, and extreme ringer. Or maybe not, and this is not some mysterious "extreme ringer", but just a pied.
EDIT: only the parents and pictures of the parents can tell.