Larry Smith wrote on Mon, Aug 22, 2005 02:12 AM UTC:
Chris Witham's '3D Chess, a different way of looking at it' is not the
first paper about planar pieces. I suggest checking out 'Exploring the
Realm of Three-Dimensional Chess' by Dave Erick Watson, published in 1997
by The Oak Hill Free Press.
Watson discusses several ways to interpret planar pieces, including giving
particular patterns names(such as lace, gossamer, stairway, checkered,
etc.) And he doesn't state that he was the originator of such potential
pieces. Leaving open the possibility that someone else might have.
And he writes, 'If the chessboard is going to be kicked up a dimension,
then we had better kick the piece moves up a dimension too!'