Sjeng: http://www.sjeng.org/
Xboard: http://www.tim-mann.org/xboard.html
Eboard: http://eboard.sourceforge.net/
Code:
%define origname Sjeng-Free-11.2
%define name sjeng
%define ver 11.2
%define rel 1
%define debug_packages %{nil}
%define debug_package %{nil}
Name: %{name}
Summary: %{name}, a xboard compatible chess engine
Version: %{ver}
Release: %{rel}
License: GPL
Group: Amusements/Games
...