Provided by: morris_0.2-2build2_amd64 bug


       morris -  Nine Men's Morris game for the Gnome desktop




       Morris  is  an  implementation of the board game "Nine Men's Morris". Other names for this
       game are: Mills, Merrills, Morris, or Mühle in German. Nine Men's Morris,  being  probably
       2000-3000  years  old, appears to be one of the oldest board games, much older than chess.
       From the 12th to the 18th century, Nine Men's Morris was one of  the  most  popular  board
       games  in  Europe.  However,  it  is  still  actively  played  today and exists in several
       variants, e.g., Morabaraba, which is particularly popular in South Africa.

       This implementation of Nine Men's Morris supports not only the  standard  game,  but  also
       several  rule-variants  and different board layouts. You can play against the computer, or
       simply use the program to present the board, but play against another human opponent.  The
       computer opponent learns from previous games and tries not to make the same mistake twice.
       This ensures enough variation in game-play, should you  once  have  managed  to  beat  the


       Among others, the game plays the following variants:

           - Lasker variant (moves are also allowed in the set-phase)

           - The Möbius board (invented by Ingo Althöfer)

           - The Windmill board

           - The Windmill board

           - Pentagon and Hexagon boards

           - Morabaraba

           - Six and Seven Men's Morris

           - Tapatan, Achi, Nine Holes

       Furthermore, the game supports:

           - Advanced AI controls to tweak AI playing style

           - Giving hints for good moves

           - Showing the principal variation

           - Move takeback (undo and redo)

           - Internationalization (English, German, Chinese)

           - Many board and rule variations

           - Free customization of rules

           - Configurable display


       Each player has nine pieces (hence the name, Nine Men's Morris) which are placed and moved
       on the line crossings of the board. Whenever three pieces of the same color are placed  in
       a  straight  row,  a mill is closed and one opponent piece may be removed. The goal of the
       game is to reduce the opponent to only two  pieces  (such  that  he  cannot  form  a  mill
       anymore),  or  to surround the opponent pieces in such a way that there are no valid moves
       for the opponent.

       The game proceeds in three distinct phases (opening, midgame, and endgame). Unlike  chess,
       these phases are distinguished by special rules for each phase.

       Opening - Setting pieces
              The  white player begins. Each player places one piece on an unoccupied position on
              the board in turns. If a mill is closed by setting a piece, the player may take one
              of the opponent's pieces. Once all pieces are set, the midgame starts.

       Midgame - Moving pieces
              Each player moves one piece along the lines to a free, neighboring position. Again,
              if the move results in closing a mill, one of the opponent's pieces may be removed.
              Note  that  a player must move a piece in each turn. If there is no legal move, the
              player has lost.

       Endgame - Flying
              If a player has only three pieces left, he my jump (or fly) with one piece  to  any
              unoccupied position instead of moving only along the board lines.


       Some  of  these  rules  are  often  interpreted  differently,  such that a variety of rule
       variants exist. This game tries to support most of them. In particular, the following rule
       variations are supported:

       Taking from opponent mills
              When a mill is closed, one opponent stone may be taken. However, usually, it is not
              allowed to take a piece from an opponent's mill, if he still has  pieces  that  are
              not  part  of  a  mill.  If  you  want,  you  can also allow to take pieces from an
              opponent's mill. Note that you can always take pieces from an opponent's  mill,  if
              all of his pieces are within mills.

       Multiple mills
              In  the  setting  phase, it may happen that two mills are closed simultaneously. In
              the multiple-mills variations, the player may take two  opponent  pieces,  in  this

       Flying Some  people  prefer  to omit the flying rule, such that only standard moves may be
              conducted, even when a player is down to only three pieces.

       Lasker variant (proposed by the chess grandmaster Emanuel Lasker)
              There is no difference between opening and midgame. I.e., a player  may  decide  to
              move  a  piece instead of setting a new piece. Usually, this variant is played with
              10 pieces instead of only 9.

       Remis  If the same board situation appeared for N times (with N usually 3),  the  game  is
              declared remis.


        The  AI  algorithm  is  a  standard  alpha-beta  search in a NegaMax implementation using
       iterative deepening. It employs a transposition table to quickly find previously  computed

       A  special  feature  is  the  automatic learning capability: whenever the computer wins or
       loses a game, it will prefer to obtain or avoid similar situations  in  the  future.  This
       results  in  a  better  long-term  motivation,  since  the computer will not make the same
       mistake twice and the gameplay will be more randomized.

       The evaluation function is still quite basic and consists of four parts:

              The number of pieces each player has left

              The number of possible moves a player can conduct

       Mills  The number of closed mills

              The learning-bias from previous games.


       You can find more information at

       For  bug  reports,  patches,   or   any   kind   of   discussion,   contact   Dirk   Farin

                                               0.2                                      morris(6)