The game of riches needs a focused and intelligent mind
focus on is correct
The likely word is focus (to create an image, or to concentrate).
Foci (correct plural of focus)
By engaging her in intelligent conversation and by making her the focus of one's attention rather than focusing on one's self.
The correct spelling is blurry (unclear, indistinct, out of focus).
The word sought may be "focus" (visual clarity, or a central point within an ellipse).
Blurry possibly? Anybody correct me if I'm wrong.
The correct spelling is attention (a focus on an activity, or a military posture).
All answers are correct.
The correct spelling is obsession (an excessive mental or emotional focus).
None. An image with wrong focus points can't be corrected, so you'll just have to take it again.
The form of the verb focus is either "focused" or focussed, with the single S preferred.