Chess
We didn't have all the pieces, so we had to invent our own rules. Two scrappy little armies, one of them mostly pawns, but the pawns were so battered you could tell each one apart. We gave them names, skills, stories. From time to time they would switch sides. One day we found a pristine set, all boxed up. It smelled of pine and paint. We turned out the pieces and lined them up. It didn't look right. Not like a real fight.