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       mgt - game record display/editor for the oriental game of go


       mgt [-m filename] [-s] [-t] [files]


       Go  is  an  ancient  oriental  strategy  game based on the capturing of
       territory.  The players alternate putting stones on the  board,  trying
       to surround as many empty intersections as possible.

       Mgt  allows  the user to examine Go game tree files created through the
       Macintosh(tm) programs Smart-Go (tm) or Go Explorer (tm).  Mgt also has
       basic  Go  game  tree editing capabilities and may be used to create or
       edit game tree files.   The  on-line  material  provided  by  a  rather
       extensive  and  growing  database  allows  many  hours of instructional
       enjoyment of various studies and tutorials concerning the game of Go.

       Mailgo is a utility which manages E-mail Go games using mgt as  the  Go
       board editor.  It is included in the mgt package.

       The  mgt  program  was  originally  developed to be a companion for the
       series, "From My Go  Teacher",  archived  for  ftp.
       Also  available  is the Internet GO Board communications program, ’go’,
       also by Greg  Hale,  which  connects  up  two  terminals  in  real-time
       anywhere in the world, and the clients for the Internet Go Server.


       -m filename
               Invoke a set of options used by the mailgo program for managing
               email games.  If a  filename  is  specified  for  loading  (see
               below),  the game record is loaded, and mgt automatically moves
               to the end of the main variation of the game record.  The  game
               can  be  modified without confirmation.  If the game record has
               been modified, it will be automatically saved, on exit, to  the
               filename  specified  after  the  -m and mgt will return success
               (zero).  If the game record has not been modified, or  has  not
               been  allowed  to  be  saved,  then  mgt  will  return  failure

       -s      Change save format used to write save files.  The default  save
               format  is  the  long  format Smart-Go file.  Using this option
               results in short format Smart-Go files.

       -t      Invoke tutor mode where you select variations by playing on the
               board.   The key for making a move has special behavior in this
               mode.  See the section on the "space or 0" keyboard command for
               a description.

       files   These  are  the  files  to be loaded.  The Unix and IBM version
               support wildcards.  If no file is specified, mgt loads a  blank
               board.   If  you  attempt to modify a file that was loaded, mgt
               will prompt for confirmation the first time.


       Mgt can be used to view and edit game records, or as an electronic game
       board  for  a  two person game.  There are many keyboard commands which
       execute the various editing and display functions.

       >       Step down the game tree to the next move.  Stop at the end of a
               variation and do not visit other variations.

       <       Move back up the game tree.  (Previous move)

        .      Go to the next node using a tree traversal which will visit all
               nodes.  Sometimes the order of traversal can be confusing.

       ,       Go to  the  previous  node  --  the  opposite  of  "."  forward

       e       Go to end of the current variation.

       b       Go to beginning of the game tree.

       }       Go forward like the "." command until a comment.

       {       Go backwards like the "," command until a comment.

       g       Go to a specified node.  Type in the desired node number.

       ]       Move  forward  until  there  is  a variation branch in the game

       [       Move backwards until there is a variation branch  in  the  game

       k and i Scroll  the game tree variation window up and down.  A - at the
               top of the variation window, and a +  at  the  bottom  indicate
               that more variations are available.

       j and u Scroll  comment  window  up  and  down.   A - at the top of the
               comment, and a + at the bottom indicate that more comments  are

       #       Load  new  file.   Will  prompt for confirmation if the current
               file has been modified.

       r       Load previous file.  (Reverse through the file list)

       f       Load next file.  (Forward through the file list)

       w       Write out Smart-Go file.  Will  prompt  for  a  filename.   The
               special  filename  *  will  save  with  the current name (which
               appears in the upper right corner).

       space or 0
               Make a move.  The current player turn is indicated by the  >  <
               around  the captured stones on the lower right.  Normally, this
               adds the move to the game tree and moves to  a  new  node.   In
               tutor  mode,  it checks the various game continuations.  If one
               of them contains the move you made, it moves to that variation.
               If  not,  it  prints an error message.  The game tree cannot be
               modified in tutor mode.

       p       Pass.  Enter a pass move.

       o       Other player.  Changes whose turn it is, adding a token in  the
               game  tree  to  force the change whenever this node is visited.
               If the player is forced by such a  token,  the  current  player
               turn is indicated by } { characters on the lower right.

       t       Toggle  stone  color.   Changes whose turn it is without adding
               any tokens in the game tree.  This will not work  if  the  game
               tree has a PLayer token (generated by the o key) at the current

       z       Set/unset black stones.

       x       Set/unset white stones.

       q or ESC.
               Quit.  q will prompt for confirmation.  ESC will not prompt for

       v       Create  a variation below the current node.  The variation will
               initially contain a null node.  You must move to that variation
               to  make a move in it.  If the "v" command is invoked at a node
               which is at the end of a variation, variation  "A"  is  created
               with  a  null  node.  Subsequent invocations of the "v" command
               will create the "B", "C"... variations.

       !       Cut tree.  Moves the current node and everything below it to  a
               temporary  holding  buffer.   (Moves  your location back to the
               parent of the node you are one when you invoke it.)

       ^       Paste tree.  Pastes the temporary holding buffer in  after  the
               current node.  Usually the  opposite of cutting the tree.

       c       Edit  the  current  comment.   The  editor  has  two  models of
               operation.  The default model has been vaguely  designed  after
               emacs.    That  means  that  the  editor  commands  are  either
               ’control-key’  or ’escape-key’.  The controls are  configurable
               through  an  environment variable.  The notation "^key" is used
               to indicate control keys, and "]key" is used to  indicate  keys
               which should be preceeded by the escape character.

               On some terminals, instead of ESC-key, you can press Alt-key or
               Meta-key.  (On the IBM version,  you  can  use  the  Alt  key.)
               Under  VMS,  the  ESC key does not work.  VMS users may need to
               redefine the edit keys.

               The second edit model was  vaguely  designed  after  vi.   That
               means  that  the editor has a command mode for cursor movement,
               etc. and an insert mode  for  inserting  text.   The  vi  model
               editor  starts  in  insert mode.  The ESC key changes mode from
               insert mode to command mode.  If pressed in command  mode,  the
               ESC  key  exits  the comment editor and saves the comment.  The
               letters below are typed in command mode to obtain the specified
               function.   To  leave  command  mode and enter insert mode, you
               must use the function  which  is  listed  as  the  insert  mode
               command.  This defaults to ’R’.   To select the vi like mode of
               operation, put _ASCEDVI in your MGT environment variable.

               Defaults are:
                          Command                emacs   vi
                   cursor up    (previous line)  ^P      k
                   cursor down  (next line)      ^N      j
                   page up      (prev page)      ]p      ^B
                   page down    (next page)      ]n      ^F
                   cursor left  (back)           ^B      h
                   cursor right (forward)        ^F      l
                   beginning of line             ^A      0
                   end of line                   ^E      $
                   beginning of comment          ]<      H
                   end of comment                ]>      L
                   delete one character          ^D      x
                   delete to end of line (kill)  ^K      D
                   toggle insert mode            ^I      R
                   save comment                  ]z      w
                   exit, don’t save comment      ^W      q

               Pressing c on a comment larger than the 120 lines allocated for
               comments  will  cause the extra to be lost.  Also, on terminals
               which generate IBM PC arrow key  codes,  the  arrow  keys  will
               correctly move the cursor within the comment editor.  The arrow
               keys only work in the emacs based model.

       d       Delete node.  Deletes the current node, replacing it  with  its
               child.   If  the  current  node  has  no  child, then clear the
               properties of the current node.

       n       Name the current node.  You will be prompted for the name.

       s       Score the game.  After selecting this, move the  cursor  around
               and  remove  the dead groups with 0 or space.  You can undo one
               (and only one) kill with the u key.  Pressing return will score
               the  game  and  print the (Japanese) score in the comment area.
               If you missed some dead groups, continue removing them.   Press
               q  when you wish to exit scoring mode.  You will be prompted to
               either keep the score information as a comment for the  current
               node or restore the old comment.

       Ctrl-I  Enter  info  mode.   In  this  mode,  the various informational
               properties of the current file are displayed and may be edited.
               To edit an item, press the letter associated with it, and enter
               the new text.  This letter must be entered in upper  case.   To
               see  a  list of letters, press ?.  The comment window scrolling
               keys can be used to scroll the  info  display.   The  supported
               info  properties  are:  Size, Handicap, playerBlack, bLackrank,
               playerWhite, whIterank, Gamename, Event,  rouNd,  Date,  Place,
               Time,  Result,  gameComment,  sOurce,  User, Komi.  The capital
               letters in this list indicate which letter  selects  that  info

       Ctrl-T  Toggle  tutor  mode.   (See  the  section  on  space  or  0 for

       Ctrl-W  Toggle the format used for writing Smart-Go files between  long
               and short.

       Ctrl-L  Refresh the screen.

       Ctrl-F  Save the current screen to a file.

       ?       Display a help screen.

               Move  the  cursor  around.   Assumes  standard  numeric  keypad


       All of the characters  used  for  the  commands  and  the  display  are
       configurable via environment variables.  For the ascii interface, use:

       setenv MGT ’_ASCCOM:q><.,eb}{][gwzxv\!lm#^cdn
                   _ASCINV _ASCED:PNpnBFAE<>DKIzO’
              (command should appear all on one line with a
               single space separating _ASC... from the
               previous string.)

       to get the default characters.  (This is csh syntax.  For other shells,
       the syntax will be different.)  Place this line in your .cshrc  so  the
       alternate characters are always in effect.

       The  _ASCCOM  string allows you to change the keyboard commands.  Upper
       case letters stand for control characters.

       The _ASCCHAR string specifies the display characters.  For example,  to
       use  @ for black stones, change the # to @ in the _ASCCHAR string.  You
       need  only  include  one  of  the  two  declarations   ("_ASCCOM:"   or
       "_ASCCHAR:")  if you only want to change the commands or characters but
       not both.

       To set the default display type to inverse video, use  _ASCINV  in  the
       MGT environment variable.

       To  set  the comment editor commands, use _ASCED in the MGT environment

       For the _ASCED environment variable setting in the emacs  based  editor
       model,  control  keys are specified with a capital letter, and ESC keys
       are anything which is not a capital letter.  This is the key string for
       the  defaults:  PNpnBFAE<>DKIzO.   Note that ^V, ^O, ^C and ^Z are poor
       characters to use for anything if you have berkeley  unix  because  the
       berkeley  tty  drivers interpret these characters.  The ^V character is
       the quoting character which quotes the following character.   You  will
       need to press it twice for mgt to see it.  The other characters have to
       be quoted by first pressing ^V or mgt will not recognize your keypress.
       You  cannot  use  ^H  or  ^?  for  anything  because  the editor always
       interprets these as destructive backspace.

       For the _ASCED environment variable setting  in  the  vi  based  editor
       model,  no  special  processing is done on the characters.  In order to
       specify control keys, you must place  actual  control  characters  into
       your  environment  string.  The default string has two control commands
       (^B and ^F) defined.  This is the default: kj^B^Fhl0$HLxDRwq.   The  vi
       based  editor  model  may  be  selected  be  including  _ASCEDVI in the
       environment variable.

       If you wish to include control characters in your string,  you  can  do
       this  most easily by editing a file which sets the environment.  Vi can
       insert most of the control characters directly.

       In all cases, when you set your own keys, you must set all of the keys,
       and they must appear in the correct order.  If you give assign the same
       key to different functions, then an arbitrary one will be used  by  mgt
       and the other functions will be unavailable.  If multiple contradictory
       specifications occur in the mgt environment  variable,  the  last  that
       appear  will  be  used  by  the program.  Any option not specified will
       assume the default values identified above.

       With the IBM version, the same effects may be achieved under DOS 4.0 or
       DOS  5.0  with  a  SET  command placed in the AUTOEXEC.BAT file.  Under
       previous DOS versions, quotes were interpreted literally and  "|",  ">"
       and  "<"  characters  have special meanings and thus cannot be put into
       environment variables with the SET command.

       Under VMS, the command is just MGT = "_ASCCHAR:..."


       Comments are expected to consist of long lines, each of  which  is  one
       paragraph.   A  single  long line will be formatted to fit the display.
       Line breaks will be ignored if they are preceeded by a space, but  will
       be respected otherwise.


       All displays have in common the purpose of displaying a go tree.
    A B C D E F G H  S T
   +---------------  ---+   -Suppose this is the second
 19|. . . # . . . .  . .|19| line of the comment.  Since
 18|. O O # # # O .  . .|18| there is some more of the
 17|. # # O O O O .  . .|17| comment above us unseen,
 16|. # O + . . . .  . .|16| the - appears to the left
 15|. # O . O . . .  . .|15| of ’Suppose’.
 14|. . # O . . . .  . .|14|
 13|. . # . . . . .  . .|13|
 12|. . . . . . . .  . .|12|
 11|. . . . . . . .  . .|11| And here, when there is
 10|. . . + . . . .  . .|10| more of the comment
  9|. . . . . . . .  . .| 9| below, the ’+’
  8|. . . . . . . .  . .| 8|+appears to our left.
  7|. . . . . . . .  . .| 7|
  6|. . . . . . . .  . .| 6|   Node #173: Name
  5|. . . . . . . .  . .| 5|-B: variation 1 hit ’B’ to see
  4|. . . + . . . .  . .| 4| C: variation 2 hit ’C’
  3|. . . . . . . .  . .| 3| D: variation 3 etc...
  2|. . . . . . . .  . .| 2| E: variation 4
  1|. . . . . . . .  . .| 1|+F: variation 5
   +---------------  ---+    ? for help    read   long
    A B C D E F G H  S T
 Black #11 at ’D19’               #: 0      > O: 0 <

       The  bottom  line  indicates that Black has just made move #11.  On the
       bottom right, the angle brackets around the white stone  indicate  that
       it  is  White’s  turn.   Above that, the word "read" indicates that the
       Smart-Go file hasn’t been  modified,  and  "long"  indicates  that  the
       default  save  format is the long format.  "Read" will change to "edit"
       if you modify the file, and it will say  "tutor"  if  you  enter  tutor


       wrapmgt - prepare short format Smart-Go files for mailing

       mailgo - email go game management

       mgt2short - script to convert Smart-Go files to short format

       RULES - an introduction to the game in Smart-Go format.

       The  From  My  Go  Teacher tutorial lessons, and many professional game
       records all available at

       Internet  go,  a  program  to  play  go  over  internet,  available  on

       Smart-Go.def, the Smart-Go format definition.


       Comment editing is limited to 120 screen lines.

       Most, but not all, of the Smart-Go properties are supported.

       Send      bug     reports     to     ""     or


       Greg Hale

       Jeff Boscole

       Adrian Mariano (

       Mike Dobbins (

SEE ALSO - a newsgroup on the game
       Graded go problems for beginners, vol 1-4, Ishi Press
       In the Beginning, Ishi Press.
       The Treasure Chest Enigma, Ishi Press.

                                  9 July 1993