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MSO Lines of Action (LOA) Tournaments

World Championship
Sessions2
19th August 201310:00
19th August 201314:15
£15 / £13.50
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Lines of Action (LOA)

Categories:  Abstract Games Board Games New Games

Lines of action (LOA) is the completely original game that can be played with a Draughts set. The big clash between Fred Kok the Dutch games master and the LOA specialist Nicolas Koichi has still to happen and the question is will there be a newcomer who takes the lead in the game before the encounter happens.

Rules

http://www.boardspace.net/loa/english/index.html
Lines of Action (LOA) is played on an 8x8 board by two sides, Black and White. Each side has twelve pieces at its disposal. It is a two-person zero-sum game with perfect information. LOA is a connection game, albeit non-typical. Claude Soucie invented it around 1960. Sid Sackson (1969) described it in his first edition of A Gamut of Games.At the sixth Computer Olympiad the LOA rules were made immutable for this tournament. They are as stated below in point 1 to 10.

Warning: in some books, magazines or websites rules 2, 8,9, and 10 can be different from what is specified here! The Olympiad organisation is using the rules, which were used at the MSO World Championship of 2000. The black pieces are placed in two rows along the top and bottom of the board, while the white pieces are placed in two files at the left and right side of the board. (see Diagram 1).


Diagram 1: Board set-up.

  1. The players alternately move, starting with Black.
  2. A player to move must move one of its pieces unless there are no legal moves.
  3. A move takes place in a straight line (along files, ranks, or diagonals), exactly as many squares as there are pieces of all colours anywhere along the line of movement.
  4. A player may jump over its own pieces, but not land on them.
  5. A player may not jump over the opponent's pieces, but can capture them by landing on them.
  6. The goal of a player is to form one connected group with all of its pieces. The first player to do so is the winner.
  7. Connected pieces are on squares that are adjacent, either orthogonally or diagonally. (see Diagram 2).
  8. A single piece is a connected group.
  9. If a move simultaneously creates a single connected unit for both players, the game is a draw.
  10. If a player cannot move, this player has to pass.
  11. If a position with the same player to move occurs for the third time, the game is drawn.


    12. Diagram 2: A terminal position.

    You can find out about opportunities to play Lines of Action live at the timetable. Please report any external links that have broken or have changed to contain inappropriate material. More information about how tournament play works can be found in clocks and in MSO rules.

    MSO Lines of Action Champions

    YearNameCountryFlagTitle
    2012 Peter Horlock England World Champion
    2011 Tim Hebbes England World Champion
    2010 Andres Kuusk Estonia World Champion
    2009 Tim Hebbes England World Champion
    2008 James Heppell England World Champion
    2007 Tim Hebbes England World Champion
    2006 Fred Kok Netherlands World Champion
    2005 Koichi Nicholas England World Champion
    2004 Fred Kok Netherlands World Champion
    2003 Koichi Nicholas England World Champion
    2002 Fred Kok Netherlands World Champion
    2001 Koichi Nicholas England World Champion
    2000 Jochen Drechsler Germany World Champion
    1999 Fred Kok Netherlands World Champion
    1998 Hartmut Thordsen Germany World Champion
    1997 Fred Kok Netherlands World Champion

    Full results and other winners can be found in Results.

    External Links

    http://www.boardspace.net/loa/english/index.html
    http://en.wikipedia.org/wiki/Lines_of_Action