Chess with Cyclical Armies is a wonderful example of the traditional way of
doing this, and I wish that I had mentioned it in my article!
The difference is that Polypiece changes not only the Knight that moved,
but all the other Knights!
Why is this Knight different than all other Knights? It isn't! They *all*
become Fibnifs, and not just your Knights but the other player's Knights
too!
Polypiece Cyclical Chess is predefined. The difference in the play of the
game is immense, even though the polypiece idea is really just a small
change to the way such things have been done before.