[jfoutz]

It's a little different than chess. Chess rules can be laid out in a few thousand words, including castling.

Right off the bat, you need to pick a set of words that are allowed. Tournaments play, of course, allow a small set of those odd two letter words. However, both sides have to agree on a word set up front. it's perfectly reasonable to pick a dictionary that doesn't recognize "za" as a real word for pizza. However, i think if transfire really wants to use "fu", he'd have to resort to urban dictionary for the word list. That also admits za, so it's kind of a lose lose there.