Enlarge (credit: USAopoly) Welcome to Ars Cardboard, our weekend look at tabletop games. Check out our complete board gaming coverage at cardboard.arstechnica.com. My oldest daughter has read the seven Harry Potter books and watched the eight (!) Harry Potter films—please, no one tell her about the Lego Harry Potter video games—but through it all, she has remained in the same observational position: outside the action.