queens(6) XScreenSaver manual queens(6)

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(6)

COPYRIGHT

Copyright (C) 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.


X Version 11 6.09 (07-Jun-2024) queens(6)