Board Thread:Naruto Discussions/@comment-27924662-20170227151559/@comment-4912646-20170228123428

Even though Ten-Tails Obito was said to be immune to ninjutsu (aside from senjutsu), we later see that Sasuke was able to wound Ten-Tails Madera with his Chidori, which he used after saying he also had "Six Paths Power" like Naruto. So it appears techniques which use the power of the Six Paths and senjutsu are the only two things that work on Six Paths Senjutsu users, though we've never been told that explicitly.