From http://www.jwz.org/xscreensaver/xscreensaver-5.25.tar.gz

[xscreensaver] / hacks / glx / queens.man

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+.TH XScreenSaver 1 "May 2002"
+.SH NAME
+queens \- n queens screensaver
+.SH SYNOPSIS
+.B queens
+[\-display \fIhost:display.screen\fP]
+[\-window]
+[\-root]
+[\-install]
+[\-visual \fIvisual\fP]
+[\-delay \fImicroseconds\fP]
+[\-wireframe]
+[\-fps]
+.SH DESCRIPTION
+The \fIqueens\fP 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?
+.SH OPTIONS
+.I queens
+accepts the following options:
+.TP 8
+.B \-window
+Draw on a newly-created window.  This is the default.
+.TP 8
+.B \-root
+Draw on the root window.
+.TP 8
+.B \-install
+Install a private colormap for the window.
+.TP 8
+.B \-visual \fIvisual\fP\fP
+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.
+.TP 8
+.B \-wireframe
+Render in wireframe instead of solid.
+.B \-fps
+Display the current frame rate, CPU load, and polygon count.
+.SH ENVIRONMENT
+.PP
+.TP 8
+.B DISPLAY
+to get the default host and display number.
+.TP 8
+.B XENVIRONMENT
+to get the name of a resource file that overrides the global resources
+stored in the RESOURCE_MANAGER property.
+.SH 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.
+.SH SEE ALSO
+.BR X (1),
+.BR xscreensaver (1)
+.BR xscreensaver\-demo (1),
+.BR xscreensaver\-getimage (1)
+.SH COPYRIGHT
+Copyright \(co 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.
+.SH AUTHOR
+Blair Tennessy <tennessb@unbc.ca>, 20-April-2002.
+