--- a/xboard.desktop	2011-05-02 11:15:52.000000000 +0800
+++ b/xboard.desktop	2011-06-13 10:38:39.000000000 +0800
@@ -150,5 +151,5 @@
 GenericName[zu]=Umdlalo we-Chess
 Type=Application
 Categories=Game;BoardGame;
-Exec=xboard
+Exec=xboard -fcp "gnuchess" 
 Icon=xboard