Board Thread:Naruto Discussions/@comment-36006024-20180926134241/@comment-32685487-20181003201222

The Shikamaru novel isn't canon. You don't want info from the other novels in the forums, then we don't use the info from this novel either. If Kishimoto worked or helped with it then it would be plausible, but he didn't so simply put he does not have the other 8 bijuu chakras.