you guys are just confused by the difference between an object itself and an object as we understand or comprehend it. the word for both things is the same.
the objects as we understand or comprehend is the same word because we call what we see that resembles what we understand it to be. match it up like Plato's waxen block in his theaetetus
Oh yeah! Feel'in right at home!
look, whether this world exists or not, its the one we're in and we got to make the best of it.
therefore i disagree with aristotle's metaphysics is the first science, our divine creator would be jealous neener nenner nener because instead of wondering whether it exists figure out how to deal with it ethically.
whether chess exists or yet, ethics still holds because we want to be powerful and contened, thats clear.