xskewb



SYNOPSIS

       /usr/games/xskewb                                            [-geometry
       [{width}][x{height}][{+-}{xoff}[{+-}{yoff}]]]                 [-display
       [{host}]:[{vs}]]   [-[no]mono]   [-[no]{reverse|rv}]  [-{foreground|fg}
       {color}]  [-{background|bg}   {color}]   [-face{0|1|2|3|4|5}   {color}]
       [-{border|bd}  {color}]  [-delay msecs] [-[no]sound] [-moveSound {file-
       name}] [-{font|fn} {fontname}] [-view {int}] [-[no]orient]  [-[no]prac-
       tice] [-userName {string}] [-scoreFile {filename}] [-scores] [-version]


DESCRIPTION

       The original puzzle has each face cut by a diamond, so that there are 5
       pieces, 4 corner pieces and one diamond piece in the center.  This  was
       designed  by  Uwe  Meffert and called the Pyraminx Cube.  Douglas Hofs-
       tadter later coined it a Skewb and it stuck.  The puzzle has  period  3
       turning  (i.e.  each  half turns with 120 degree intervals).  The Skewb
       has 2^5*3^8*6!/2^6 or 3,149,280 different  combinations  (with  centers
       oriented 2^5*3^8*6!/2 or 100,766,960 different combinations).

       More  recently,  Disney  released  Mickey's  Challenge, its a spherical
       skewb with a pretty good internal mechanism.   Mickey's  challenge  has
       2^5*3^8*6!/36  5,598,720  visually  different  combinations).   It also
       comes with a pretty neat book.  Also released is  the  Creative  Puzzle
       Ball or Meffert's Challenge which has 4 rings in different colors.

       Mach Balls of the Hungarian Gyula Mach are similar but they do not have
       a ratchet mechanism and do not turn as easily or  smoothly.   One  must
       match the 12 different symbols of 4 each at the 12 intersection points.


FEATURES

       Press "mouse-left" button to move a piece.  Release "mouse-left" button
       on a piece on the same face.  (Clicks on diamonds  are  ignored).   The
       pieces will then turn towards where the mouse button was released.

       Click  "mouse-center",  or press "P" or "p" keys to toggle the practice
       mode (in practice mode the record should say "practice").  This is good
       for learning moves and experimenting.

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

       Press "R" or "r" keys to read a saved puzzle.

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

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

       Press "E" or "e" keys to redo a move.

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

       "S" or "s" keys to start auto-solver.

       Press "O" or "o" keys to toggle the orient mode.  One has to orient the
       faces  in  orient  mode,  besides  getting all the faces to be the same
       color.  To do this one has to get the lines to be oriented in the  same
       direction,  this only matters with center diamond piece.  This does add
       complexity so there are 2 sets of records.

       Press "V" or "v" keys to change the view of the cube.

       Press ">" or "." keys to speed up the movement of  pieces  (not  imple-
       mented).

       Press  "<"  or "," keys to slow down the movement of pieces (not imple-
       mented).

       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 the Skewb2d as:
         /     Counterclockwise

       7 8 9   Upper Left, Up, Upper Right
         ^
       4<5>6   Left, Clockwise, Right
         v
       1 2 3   Lower Left, Down, Lower Right

       If the mouse is on a diamond, the above keys will not move cube because
       the move is ambiguous.  Also if the mouse is on a triangle, not all the
       keys will function because the puzzle will only  rotate  on  the  cuts,
       i.e.  a  triangle  with a Upper Left - Lower Right cut will rotate only
       Upper Left & Lower Right, a triangle with a Upper Right  -  Lower  Left
       cut  will  rotate only Upper Right & Lower Left.  Therefore, a triangle
       can only move tangential to the center of the face. No  doubt  this  is
       confusing,  but  the  physical  skewb is the same way. In fact, that is
       part of its appeal.

       Key pad for other than Skewb2d, use must use your intuition (is this  a
       cop  out  or  what?).   The key pad is defined differently depending on
       which side of the cube your mouse is pointing at.  One thing that stays
       the same is "5" is Clockwise and "/" is Counterclockwise.

       Use the control key and the left mouse button, keypad, or arrow keys to
       move the whole cube.  Its also possible to rotate whole  cube  with  an
       axis  through  a  face with alt key is pressed (Tab key when using Win-
       dows).  This is not recorded as a turn.

       The title is in the following format (non-motif non-opengl version):
              xskewb{2|3}d<dimension>: (<Number of moves>/{<Record  number  of
              moves> <user name>|"NEVER noaccess"|"practice"}) - <Comment>
       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  skewb  window
               (resource name "geometry").

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

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

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

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

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

       -face{0|1|2|3|4|5} <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. On the 2-D version, the faces
               are ordered top to bottom and left to right on the "t" configu-
               ration.  The  "+-"  configuration is physically consistent with
               the former, so it is ordered "0, 1, 2, 3, 5, 4".   If  you  has
               two  colors that begin with the same letter you should have one
               in uppercase and  one  in  lowercase  to  distinguish  them  in
               mono-mode.  You  can  change  the colors of the faces to make a
               stupid cube (i.e. all White or in mono-mode all "W").  Unfortu-
               nately,  it  will  not normally say its solved when its random-
               ized. This would be cheating.

       -{border|bd} color
               This option specifies the border color of  the  pieces  in  the
               skewb window (resource name "borderColor").

       -delay msecs
               This  option  specifies  the number of milliseconds it takes to
               move pieces (1-50) (resource name "delay").

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

       -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").

       -view <int>
               This  option  allows  you  to  change  the view of the cube for
               OpenGL with choice of 4 views (resource name "int").

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

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

       -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 xskewb you have.


RECORDS

       You  must  randomize  the  puzzle  before a record is set, otherwise an
       assumption of cheating is made if it  is  solved  after  a  get  or  an
       auto-solve.


SAVE FORMAT

       Here is the format for the xskewb configuration, starting position, and
       the movement of its pieces.

       Skewb2d with default colors, not randomized:
         0       R     Red
       1 2 3   B W G   Blue, White, Green
         4       P     Pink
         5       Y     Yellow

              orient: 0-1 <0 false, 1 true; if 1 then lines on  pieces  to  be
              oriented>
              practice: 0-1 <0 false, 1 true>
              moves: 0-MAXINT <total number of moves>

              startingPosition:  <2 dimensional array of face and corner posi-
              tion and center diamond position, each face has 4 corner  pieces
              and  one  center  piece,  if orient mode then orientation number
              follows face number: 0 up, 1 right, 2 down, and 3 left>

       This is then followed by the moves, starting from 1.
              move #: <direction> <control> <face> <corner>
       Each turn is with respect to a corner on a face.
       The corners start at the upper right and work clockwise.
       Direction is represented as 0 upper right, 1 lower right, 2 lower left,
       3  upper left, 5 clockwise, 7 counterclockwise, 8 up, 9 right, 10 down,
       and 11 left.
       Control is represented as 0 or 1, 1 if the whole cube is moved at  once
       (here  the corner does not matter), 0 if not.  The xskewb record keeper
       does not count a control move as a move, but here we do.


REFERENCES

       Beyond Rubik's Cube: spheres, pyramids,  dodecahedrons  and  God  knows
       what  else by Douglas R. Hofstadter, Scientific American, July 1982, pp
       16-31.

       Mickey's Challenge by Christoph Bandelow.

       Magic Cubes 1996 Catalog of Dr. Christoph Bandelow.


SEE ALSO

       X(1), xcubes(6), xtriangles(6),  xhexagons(6),  xmlink(6),  xbarrel(6),
       xpanex(6), xmball(6), xpyraminx(6), xoct(6), xrubik(6), xdino(6), xaba-
       cus(6)


COPYRIGHTS

       (R) Copyright 1994-2016, 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:
              http://www.sillycycle.com/puzzles.html
              http://ibiblio.org/pub/Linux/games/strategy



V8.0.5                            13 Sep 2016                        XSKEWB(6)