Abstract: A game card assembly consisting of a plurality of superposed sheets which define a plurality of windows in vertical, horizontal, and diagonal rows, each window being provided with two laterally slidable shutters which are selectively movable back and forth between retracted substantially non-visible positions and predominately visible positions. The shutters of each window possess different distinguishing characteristics so that when either shutter is in its predominately visible position, its window as a whole is given a distinguishing characteristic. The various rows of windows are arranged in checkerboard fashion in order that vertical, horizontal or diagonal alignment of like shutters may form the basis for the playing of a game of the tic-tac-toe variety.