There's a really good web site called It's Your Turn that allows you to play chess and other similar games for free against other people via a completely web based interface. I enjoy playing regular chess and Chinese chess (Xiangi) and occasionally I play their version of Stratego which they call Sabotage. If anyone wants to try a few games my user id there is Hatch68. Log in, create an ID, and invite me. I try to do at least 1 turn per day.