fpChess
From Lazarus wiki
The fpChess is still under construction. It should support playing via the internet as well as against a computer AI.
Galery
Subversion
svn co https://lazarus-ccr.svn.sourceforge.net/svnroot/lazarus-ccr/applications/fpchess/ fpchess
Download
Binary releases can be found here:
http://sourceforge.net/projects/p-tools/files/FPChess/