You can invite your Google Talk friends to a game of chess by just clicking on his/her name in the gadget friends list. Once they receive an invitation, they can accept or refuse (they can also give a reason). You can save games if you unexpectedly have to leave. When you have time again, you can load it, play it with someone else or even change your color.
The game engine is complete with castling and en-passant, and you can instantly see all available moves (especially refreshing for newbies). This version is the first release on CNET Download.com.