Board Thread:Naruto Discussions/@comment-4634610-20141010152345/@comment-1512913-20141010193019

I suppose that if Sasuke were to turn off his Sharingan, leaving only the Rinnegan active, it would appear with 9 tomoe, but that's just my guess. The only thing I'm truly clueless about is why just 1 Rinnegan, considering Madara had 3 total, 2 tomoe-less and 1 with all 9 tomoe.