John Smith wrote on Sat, Dec 13, 2008 08:51 AM UTC:
Just as a Bishop is colourbound, a Rook is squarebound. A piece even less
bound than the Rook would be a Bishop that can stop on the corners of the
squares, preferably only a certain type of corner, e.g. the lower left
corners of the squares, though for symmetry in a FIDE-like set-up, a
toroidal 64 point grid is recommended. And, yes, even this piece is bound
in some way, for it cannot access the edges of the squares.
