This version is written in Java so that it will run under Mac-OSX and Linux as well as Windows.
The game can be played on a single computer with two players sharing the screen, or works with Skype software* over a network. You can also play against the program's robot, either at Kriegspiel or at Chess. Please note that the robot is a lousy chess player because he can't see your pieces!
A free beta version of the software is downloadable for you to test.
The latest download version is V3.03, released 1st September 2009. See Changes since v3.01/v3.02
See Version 3 Help for a complete guide to the program.
Your computer needs to support Java. Most new computers already do so, but you can download Java via this link.
Disclaimer: This product uses the Skype API but is not endorsed, certified or otherwise approved in any way by Skype
*Alternatively the program can support networking over a home LAN using the freeware Jeeva chatserver if preferred.