Dan Graham, 1942 USA
A multiple for almost everyone familiar with the numbers game:
16 squares plus one open spot on a plastic board. One manoeuvres squares by using the empty space until the game is solved. Not necessary with Dan Graham’s game. There is only one outcome. 7.50 x 9.0 cm. Yves Gavaert Editeur, Brussles.
Bury, Stephen, 2001, Artists’ Multiples 1935-2000, Ashgate Publishing Limited, Aldershot, UK. pp. 137-8.