Solve the same task provided that the cubes are put to each other only with different sides: white to black and vice versa.
Practically the following beautiful puzzle can interpret this special case. Instead of white sides of all cubes the cavities will be and instead of black sides – the salients of the same format. Fastening all details (at first in pairs, pairs in halves), we'll get a figure. On its lateral sides the cavities and salients will alternate in the "chess" order. The appearance of such puzzle is submitted in the following drawing.
