Relatively I don't have that much anime experience, but I've seen my fair share. I'm really looking for anime surrounding games or battles of wits, such as Death Note, Eden of the East or Liar Game. I don't mind supernatural elements, etc. but I prefer them to be grounded in reality. Anything similar to those mentioned you could suggest?
I'm pretty sure this is the right forum, but if not, please move it to where it belongs, or lock it if there's already a thread for this purpose which I missed. I was going to put this in Just Anime, but I'll take manga if it's easily available.