Board Thread:Naruto Discussions/@comment-4704473-20140625072535/@comment-3568954-20140626080202

the Rinnegan can sense and feel all chakra. the sharingan has a specific chakra signature. there is no tricking him he would have sensed if it was the Rinnegan. the Sharingan is the eye that mirrors the soul. madara has a Rinnegan so the third eye mirrored his inner eye(a Rinnegan). there is no way around it you can speculate all you want. there is no way that she would have the Rinnegan with out him knowing it. its the same way that Nagato could sense a technique based on the techniques chakra.