Abstract: A game or educational apparatus is described, the game or educational apparatus comprising or including a support frame having a plurality of locators. The game or apparatus further including a changeable sheet having a plurality of primary indicia forming a primary indicia set. In use the sheet underlying the support frame and each indicia of the primary indicia set associated or associable with one locator of the plurality of locators. The game or apparatus further including a plurality of pieces forming a set of pieces. Each piece of the set of pieces having secondary indicia uniquely or near uniquely being associable with one indicia of the primary indicia set.