in freemasonry the black and white checkered pattern is a reoccurring theme. involve in ritual its main reference to anything I can think of would be a chess or checker board. The game obviously being a reference of war but I think the real theme they want to show is that there's a different reality that aren't on most peoples "boards". They never see it but it effects everything they do. This worm hole shit you guys are talking about is interesting too.