Objectives : having a fun usage of features offered by Broadway on GTK+3.
There are many available online chess playing websites today. They generally allow players to challenge each other using their (ad-encumbered) proprietary interface.
Now, let's suppose you don't want to use such a site, but still allow your friends to easily join a chess play hosted on your computer. These friends could very well use Windows, Linux or Mac OS X ; a recent version of Firefox will be the only prerequisite.
You happen to run Windows (Linux Fedora commands to be found at the bottom of this post) ; so you'll install the Windows version of GNOME Chess (which I just built ;-) ) :
gnome-chess-3.8.3_(TARNYKO).exe (21.3 Mb)
Then, you'll run the web version of GNOME Chess :
Nothing on the screen yet... but if you happen to run Firefox and browse to http://127.0.0.1:8080 :
You're just accessing the game using your browser !
Finally, you only need to open port 8080 on your modem-router (method differs regarding the model) then get your public IP address obtainable via a dedicated website, formatted this way...
... and give it to your friends, so they can get there with their Firefox.
Here we go !
PS1 : for technical reasons, playing against the computer is disabled.
PS2 : for technical reasons, 3D display is disabled. It could be patched very soon if I get my free time back. It won't be available in web mode, anyways.
PS3 : under Fedora 19, to obtain the same result :
yum install gnome-chess