Ha ha! You can often find such chess in the parks of holiday resorts. Mostly grandparents play, and then mothers and children come and play in their own way. Grandparents are very irritated by these games.
I know the white and black pieces go on opposite sides of the game board but that's about it! I have no idea on how they are lined up after that. But I do think these large size games are kind of cool. Good catch!