The n-queens problem Post: 302866797

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queens

XScreenSaver(1) 					      General Commands Manual						   XScreenSaver(1)

NAME

       queens - n queens screensaver

SYNOPSIS

       queens [-display host:display.screen] [-window] [-root] [-install] [-visual visual] [-delay microseconds] [-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.
	       -fps  Display a running tally of how many frames per second are being rendered.	In conjunction with -delay 0, this can be a useful
	       benchmark of your GL performance.

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)

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.

								     May 2002							   XScreenSaver(1)