Munich-born artist Josef Hartwig designed a 32-piece chess set for the Bauhaus between 1923 and 1924 using minimal lines, circles and squares, to reduce the pieces to their basic function of movement.

For example, the X-shaped bishop represents its diagonal movements, while the near-limitless movements of the queen are represented with a sphere on top of a cube.

By eliminating all religious and monarchical symbols typically used in chess, the German designer aimed to redesign the game for a modern age.