NAME

       queens - n queens screensaver

SYNOPSIS

       queens  [--display  host:display.screen]  [--window]  [--root] [--window-id number] [--install] [--visual
       visual] [--delay microseconds] [--wireframe] [--fps]

DESCRIPTION

       The queens program solves the n-queens problem (where, in this program, N is between  5  and  10  queens)
       using  a  straightforward  backtracking  algorithm.  The problem is: how may one place N queens on an NxN
       chessboard such that no queen can attack a sister?

OPTIONS

       queens accepts the following options:

       --window
               Draw on a newly-created window.  This is the default.

       --root  Draw on the root window.

       --window-id number
               Draw on the specified window.

       --install
               Install a private colormap for the window.

       --visual visual
               Specify which visual to use.  Legal values are the name of a  visual  class,  or  the  id  number
               (decimal or hex) of a specific visual.

       --wireframe
               Render  in  wireframe  instead  of  solid.   --fps  Display the current frame rate, CPU load, and
               polygon count.

ENVIRONMENT

       DISPLAY to get the default host and display number.

       XENVIRONMENT
               to get the  name  of  a  resource  file  that  overrides  the  global  resources  stored  in  the
               RESOURCE_MANAGER property.

       XSCREENSAVER_WINDOW
               The window ID to use with --root.

BUGS

       It's  not  unknown for this and other OpenGL hacks to fail under hardware accelaration (UtahGLX) and take
       the X server with them.  Texture images must be 16x16 or 32x32 or 64x64 etc.

SEE ALSO

       X(1), xscreensaver(1) xscreensaver-settings(1), xscreensaver-getimage(6x)

COPYRIGHT

       Copyright © 2002 by Blair Tennessy.  Permission to use, copy, modify, distribute, and sell this  software
       and  its  documentation  for any purpose is hereby granted without fee, provided that the above copyright
       notice appear in all copies and that both that copyright notice and  this  permission  notice  appear  in
       supporting  documentation.   No  representations  are made about the suitability of this software for any
       purpose.  It is provided "as is" without express or implied warranty.

AUTHOR

       Blair Tennessy <tennessb@unbc.ca>, 20-April-2002.