queens man page

queens — n queens screensaver

Synopsis

queens [-display host:display.screen] [-window] [-root] [-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.

-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.

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-demo(1), xscreensaver-getimage(1)

Author

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

Info

5.36-4.fc26 (10-Feb-2017) X Version 11 XScreenSaver manual