What is Madara's top intelligence feats In the series

[Apple Knight]

Madara

 

[Madarauchiwa]

breaking obito and turning him evil. and planning all the events of the series. hijacking obits resurrection jutsu plus having the knowledge to put a seal on somebodies heart so they can disobey. timing his izanagi to bring him back after his "death"

figuring out every jutsu he saw after seeing it used once. realizing there was a connection between him and sasuke other than being uchiha. honestly theres to many to count

 

[Darth AniCetuS]

Fooling Hashirama at VoTE.
Manipulated Obito and turned him into his pawn.
His entire execution of the IT from dying and then coming back to life.

 

[the last uchiha]

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[InfiniteDeath]

Eating a piece of meat off Hashirama and programming Izanami to bring him back to life, enabling him to implant Hashi DNA and awakening rinnegan, etc