w3Chess is for people with less time. You can make your chess move with your web browser and it is send to you and the other player via mail.

It's not like a "real" match, but you can do a move whenever you have the time. At home, not at work, at school....

The secondary goal is KISS... Keep it stupid simple!

License: free

Additional System Requirements: You'll need some kind of web-browser and email reader.
At least w3m and pine is quite good, or use your mobile phone...
On server side, you don't need any special programs or stupid and often expansive services like php or any kind of sql server.