Rhumb Line
Rhumb Line Rulebook
Table of Contents
Table of Contents
Components
Played on a compass rose board, with Officer yellow and Sailor blue stones, using 16 each to play & 1 to keep score.
Setup
Choose colors by drawing stones from the pouch. The first to draw yellow starts and plays that color throughout the game.
As rank has its privilege, the player with the Officer stones starts the game by placing a yellow stone in any position on a radial.
Playing the Game
The opponent may then place a Sailor blue stone in any other position on any radial, and so on.
Take turns placing the stones on the empty board, building &/or blocking point-winning rhumb lines.
Position stones on the radial lines of degrees where they intersect the concentric circles in the compass.
Place the stones, one at a time, building on those already on the board to complete &/or block new point-winning rhumb lines.
As the game progresses, several point combinations may be completed with a single turn.
Example: a stone placed on NW completes a Radius = 10 points and a Spiral = 30 points, for a total of 40 points.
Scoring
Points are always accrued ... never deducted. Players win points when placement of their stones in four compass positions in a row is completed ... in any of the following combinations:
Radius = 10 Points
Four stones in a straight line between the center and the circumference.
(Poster diagrams: three examples of four stones on a radial line running from the centre to the outer circle, one diagonal, one vertical, one horizontal.)
Arc = 20 Points
Four stones in a curved line within the same circle.
(Poster diagrams: three examples of four stones forming a curved line within a single concentric circle.)
Spiral = 30 Points
Four stones in a winding line between the center and the circumference.
(Poster diagrams: three examples of four stones forming a winding line from the centre to the outer circle.)
Combinations
Radius & Arc & Spiral = 60 Points ...
2 Spirals = 60 Points ... Arc & Spiral = 50 Points ...
2 Arcs = 40 Points ... Radius & Arc = 30 Points.
Declaring and Recording Points
Players declare the completed combination(s) and keep score on their end of the board with the extra stone of their color. After 100 points ... adding to and continuing from 10.
Points overlooked and not marked before the opponent takes a turn are forfeited.
Moving Stones
Once the stone being played is released, it may not be moved ... with the following exception.
When just 1 stone each remains, players remove 1 of their stones from the board (once only) and on their next turn, place it in any position ... other than the one from which it was removed.
End of Game
The game is over when all 32 positions on the compass rose are covered and the higher scoring player is the winner of Rhumb Line.