I have no idea how it’s played, but MeIgnorant has some interesting shots of a three-player chess variant.
Hmm…now the next time my wife gives me a strange look after I ask her if she wants to join me in a three-way, I can act all indignant and insist I was only talking about chess.
3 Player Chess is so much fun, I bought mine here: 3 Way Chess
You can play three player chess online on ThreeChess – Three Player Chess Online