i thought some of you might be interested in this site i came upon while searching for a "web graph".....
they have lots of various graph types and their basic equations that could easily be used for board game paths. not to mention a bunch o' math stuff i suppose might come in handy... :wink:
anyway here's the link http://mathworld.wolfram.com/WebGraph.html
just look around and follow the links to other graph types and other stuff if you're interested.