Of course it will be mangnus carlson will win in chess
Who do you think would win in a Chess match between Magnus Carlsen & Batman?

Magnus because batman doesn't have chess knowledge, so it's impossible to beat a gm without knowing anything about chess, i suppose. But if batman have the time to prepare himself for the fight, he'll win.

As they all say, there's no one Batman can't beat with enough prep time. For chess, that prep time might be a bit too long.
On one hand, Magnum is Magnum (that's MY special name for Magnus Carlsen. No one else can call him that)
But on the other hand, Batman is Batman.
Who would win?