Abstract: A base is provided from which an overlying support is supported for angular displacement about an upstanding axis passing centrally through the support. A plurality of elongated coplanar support arms are disposed generally radially of and spaced equally about the axis and are mounted from the support for longitudinal extension and retraction of the arms relative to adjacent portions of the outer periphery of the support. The arms include outer end portions from which elongated gameboard marginal edge support members are mounted extending transversely of the arms and the support members include upwardly facing support surface portions spaced longitudinally therealong for support of a corresponding marginal portion of a gameboard therefrom. The support surface portions are generally coplanar with the upper surface of the horizontal support.