This seems like it would work a lot better as a computer program, where the crossword cube can be rotated by the user to see the different fields. Otherwise a 7 x 7 x 7 seems like it would be too large for a newspaper, where real estate is limited (not to mention the difficulty in doing the “depth” part of the crossword). Making it virtual (either a standalone app, web app, steam game) solves most of the potential problems.
This seems like it would work a lot better as a computer program, where the crossword cube can be rotated by the user to see the different fields. Otherwise a 7 x 7 x 7 seems like it would be too large for a newspaper, where real estate is limited (not to mention the difficulty in doing the “depth” part of the crossword). Making it virtual (either a standalone app, web app, steam game) solves most of the potential problems.
Well, here is a low-tech version of a user interface. Printed (3D) crossword. Or at least printable. Perhaps it would do for some.
http://www.critticall.com/cubus_maximus/test.html
The virtual spaces could be also somewhat filled with them, yes.