Phil Brady wrote on Tue, Feb 4, 2003 01:48 PM UTC:
You can find a PDF with a piece of the board at
http://www.ee0r.com/tri-chess/
(Look for the section titled 'What You Need'.)
The page is about a chess-like game using Icehouse pieces, and so the
board isn't colored quite right, but it's still useable. Be sure to look
at the very bottom--there's an interesting way of making a five-player
board with the PDF.