Manga with 400 IQ Mindgames and Strategy to outsmart your opponent

[vexxar]

Basically I'm looking for manga where there is a lot of big brain 400 IQ plays and the characters are literally playing 4D Chess with their opponents and outsmarting them. This means pretty much any genre as long as their is a high degree of strategy or planning and/or plot twists. Better if MC doesn't have too much plot armour or extremely OP abilities. I haven't really read many manga that fit the description so I'll list out some anime as well:
Good Examples:
Death Note
Code Geass
Classroom of the Elite
Kaiji
Promised Neverland
Jojo's (obviously)
My Deathflags show no sign of ending
It can also be comedy or a non-serious manga like Kaguya-sama:love is war etc. as long as there is some degree of mind games.

 

[Amarillo]

Liar Game

 

[KindaSmartguy]

If you want a 500 IQ MC that got his Intelligence from training then I suggest Gamble Fish

 

[MawMaw]

@vexxar
HxH
Spice and Wolf (I'm surprised how well the male MC handling things with his brain lole)
Liar Game and One Outs, for the latter you need to watch the anime first and then read the manga since the tl team dont bother doing what's covered in the manga
have you catch up with Kaiji manga as well? anyway all other FKMT works use big brains as well and most of them is not gamble or a typical gambling game too stuff like:
Zero and its sequel is like a proto-shounen Kaiji, Gin to Kin, Buraiden Gai, Kokuhaku, Seizon Life have some outsmarting to do and then you can check out Kurosawa because its great and etc
also Grand Blue, Boku to Issho, Futari Monolugue, Shed Ryugaki-san can caught you off guard real hard its a mind games on what the reader expect lol
shoutout to Saiki

 

[IjoDaun]

Shadows House[/url ]
should be a little bit similar with Promished neverland. from locked surrounding, surviving (not extreme as promished neverland though), power struggling, mind gaming, etc

 

[FlashFire8]

Alice in Borderland

 

[Dmbro]

Tomodachi Game

 

[deSolAxe]

Don't really recall anymore, but how about https://mangadex.org/title/1612/kurosagi

 

[Falador]

https://mangadex.org/title/45225/lord-of-the-mysteries

Dunno if it's mind gamey enough for you, but it fits your description.