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MISSING_LINK(6)			 Games Manual		       MISSING_LINK(6)

NAME
       xmlink -	Missing	Link X widget

SYNOPSIS
       /usr/games/xmlink					    [-geometry
       [{width}][x{height}][{+-}{xoff}[{+-}{yoff}]]]		     [-display
       [{host}]:[{vs}]]	  [-[no]mono]	[-[no]{reverse|rv}]  [-{foreground|fg}
       {color}]	   [-{background|bg}	{color}]    [-{border|bd}     {color}]
       [-face{0|1|2|3|4|5|6|7}	 {color}]  [-tile  {color}]  [-frame  {color}]
       [-[no]stippleFrame] [-[no]install] [-picture {filename}]	[-delay	msecs]
       [-[no]sound]   [-bumpSound    {filename}]    [-moveSound	   {filename}]
       [-{font|fn}  {fontname}]	 [-tiles  {int}]  [-faces {int}] [-[no]orient]
       [-[no]middle]  [-[no]practice]  [-base  {int}]	[-userName   {string}]
       [-scoreFile {filename}] [-scores] [-version]

DESCRIPTION
       Ideal's	The  Missing Link, a 4x4 puzzle, riding	on the wave of Rubik's
       Cube craze.  There are many variations on  this	theme,	including  the
       "6x6"  puzzle  and Babylon Tower.  What makes the Missing Link a	harder
       puzzle to solve is that the 2 center positions rotate together.

FEATURES
       Press "mouse-left" button to move a tile.  Release "mouse-left"	button
       in  the same row	would move the tile towards the	space (unless there is
       no space	in that	row).  Release on a different row will move the	 tiles
       up or down.

       Click  "mouse-right", or	press "Z" or "z" keys, to randomize the	puzzle
       (this must be done first	to set a new record).

       Press "G" or "g"	keys to	read (get) a saved puzzle.

       Press "W" or "w"	keys to	save (write) a puzzle.

       Press "U" or "u"	keys to	undo a move.

       Press "R" or "r"	keys to	redo a move.

       Press "C" or "c"	keys to	clear the puzzle.

       Press "S" or "s"	keys to	start the auto-solver.	Only works where tiles
       = 4 and faces = 4.

       Press "O" or "o"	keys to	toggle the orient mode.	 Slightly  more	 chal-
       lenging on (default is off).

       Press  "M" or "m" keys to toggle	the middle mode.  All the middle tiles
       rotate together.	 This is considerably more challenging on (default  is
       on).

       Press ">" or "."	keys to	speed up the movement of tiles.

       Press "<" or ","	keys to	slow down the movement of tiles.

       Press "@" key to	toggle the sound.

       Press "Esc" key to hide program.

       Press "Q", "q", or "CTRL-C" keys	to kill	program.

       Use the key pad or arrow	keys to	move without the mouse.
       Key pad is defined for Missing Link as:
	 8     Up
	 ^
       4< >6   Left, Right
	 v
	 2     Down

       Use  the	 shift	key  and  the  up or down arrow	keys to	rotate all the
       tiles.

       Use the control key and the keypad or arrow keys	to reduce  or  enlarge
       the complexity of the puzzle.

       The title is in the following format (non-motif version):
	      xmlink:  <row>x<column>  {norm|ind<control of movement of	middle
	      tiles>} @	(<Number of moves>/{<Record  number  of	 moves>	 <user
	      name>|"NEVER noaccess"|"practice"}) - <Comment>
       Movement	of middle tiles	are either move	together or independent.
       If  there  is no	record of the current puzzle, it displays "NEVER noac-
       cess".

OPTIONS
       -geometry {+|-}X{+|-}Y
	       This option sets	the initial position of	the missing link  win-
	       dow (resource name "geometry").

       -display	host:dpy
	       This option specifies the X server to contact.

       -[no]mono
	       This  option allows you to display the missing link window on a
	       color screen as if it were monochrome (resource name "mono").

       -[no]{reverse|rv}
	       This option allows you to see the missing link  window  in  re-
	       verse video (resource name "reverseVideo").

       -{foreground|fg}	color
	       This option specifies the foreground of the missing link	window
	       (resource name "foreground").

       -{background|bg}	color
	       This option specifies the background of the missing link	window
	       (resource name "background").

       -tile color
	       This  option specifies the tile color of	the tiles in the miss-
	       ing link	window (resource name "tileColor").

       -{border|bd} color
	       This option specifies the border	color  of  the	tiles  in  the
	       missing link window (resource name "orderColor").

       -face{0|1|2|3|4|5|6|7} <color>
	       This  option allows you to change the color of a	face (resource
	       name "faceColorN"). In mono-mode, color is represented  as  the
	       first  letter of	the color name.	 The 0th face is the last face
	       face on missing link because I wanted that one to remain	 white
	       by default when there are more or less faces.

       -frame color
	       This  option  specifies	the  color of the frame	(resource name
	       "frameColor").

       -[no]stippleFrame
	       This option allows you to toggle	the frame stippling  (resource
	       name "stippleFrame").

       -[no]install
	       This  option  specifies	if the colormap	should be installed or
	       not (resource name "install").

       -picture	filename
	       This option specifies the file for the picture  (resource  name
	       "picture").

       -delay msecs
	       This  option  specifies	the number of milliseconds it takes to
	       move a tile or a	group of tiles one space (1-50)	(resource name
	       "delay").

       -[no]sound
	       This option specifies if	a sliding tile should make a sound  or
	       not (resource name "sound").

       -bumpSound filename
	       This option specifies the file for the bump sound for the slid-
	       ing of (resource	name "bumpSound").

       -moveSound filename
	       This  option  specifies	the  file  for	the move sound for the
	       twisting	of the puzzle (resource	name "moveSound").

       -{font|fn} ontname
	       This option specifies the font that will	be used	(resource name
	       "font").

       -tiles <int>
	       This option allows you to change	the number of links in	a  row
	       (resource name "tiles").

       -faces <int>
	       This  option allows you to change the number of faces in	column
	       (resource name "faces").

       -[no]orient
	       This option allows you to access	the  oriented  mode  (resource
	       name "orient").

       -[no]middle
	       This  option  allows  you  to access the	middle rigid mode (re-
	       source name "middle").

       -[no]practice
	       This option allows you to access	the  practice  mode  (resource
	       name "practice").

       -base int
	       This  option  specifies the base	used (default is base 10) (re-
	       source name "base").

       -userName string
	       This option specifies the user name for	any  records  made  or
	       else it will get	your login name	(resource name "userName").

       -scoreFile filename
	       Specify an alternative score file (resource name	"scoreFile").

       -scores This option lists all the recorded scores and then exits.

       -version
	       This option tells you what version of xmlink you	have.

RECORDS
       You  must randomize the puzzle before a record is set, otherwise	an as-
       sumption	of cheating is made if it is solved after a get.

SAVE FORMAT
       Here is the format for the xmlink configuration,	starting position, and
       the movement of its pieces.

	      tiles: 1-8 <number of tiles in a row>
	      faces: 1-8 <number of tiles in a column>
	      middle: 0-1 <0 false, 1 true; if 1  then	middle	moves  as  one
	      unit>
	      orient: 0-1 <0 false, 1 true; if 1 then chain linked in order>
	      moves: 0-MAXINT <total number of moves>

	      startingPosition:	 <array	of tile	positions where	0 is the empty
	      space>

       This is then followed by	the moves, starting from 1.
	      move #: <direction> <tile> <shift>
       Direction is represented	as 0 up, 1 right, 2 down, and 3	left.
       Tile is the column of tile.
       Shift is	represented as 0 or 1, 1 if the	whole puzzle is	moved at  once
       (here  Tile  does not matter), 0	if not.	 The xmlink record keeper does
       not count a control move	as a move, but here we do.

REFERENCES
       L. E. Horden, Sliding Piece Puzzles  (Recreations  in  Mathematics  Se-
       ries), Oxford University	Press 1986, Plate X.

       you  are	about to find the solution: The	Missing	Link, Ideal Toy	Corpo-
       ration, 1981.

       James G Nourse, The Simple Solutions to Cubic  Puzzles,	Bantam	Books,
       New York, November 1981,	pp 16-23.

SEE ALSO
       X(1),  xcubes(6),  xtriangles(6),  xhexagons(6),	xbarrel(6), xpanex(6),
       xmball(6),  xpyraminx(6),  xoct(6),  xrubik(6),	xskewb(6),   xdino(6),
       xbevel(6), xabacus(6)

COPYRIGHTS
       (R) Copyright 1994-2024,	David A. Bagley

BUG REPORTS AND	PROGRAM	UPDATES
       Send bugs (or their reports, or fixes) to the author:
	      David A. Bagley, <bagleyd	AT verizon.net>

       The latest version is currently at:
	      https://www.sillycycle.com/puzzles.html
	      http://www.ibiblio.org/pub/Linux/games/strategy/

V8.8.4				  15 Aug 2024		       MISSING_LINK(6)

Want to link to this manual page? Use this URL:
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