Brax or Jinx is two, three or four person war game invented in Britain in the mid 19th century.
Rules A Brax board consists of a 9 x 9 grid of intersections or points shown in Figure 1. The lines between the points are either red or blue. For a two player game, each player has seven pieces, one gets seven red and the other seven blue. The object of the game is to capture all the opponent’s pieces.
The players decide who will start and then they take turns to move one piece at a time. The pieces can move in any direction along a line to a vacant point. The number of points that a piece can move depends on the color of the lines. If a piece moves along a line of different color, it may only move to an adjacent vacant point, as in the case of a red piece moving along a red line. If a piece moves along a line of the same color, it may be moved either one or two points. If the piece is moved two points it may change direction but must stay on a line of the same color. Possible moves are shown in Figure 2.
A player captures an opponent’s piece when his piece is moved to a point occupied by the opponent’s piece. The captured piece is removed from the board. It is not required that a player capture an opponent’s piece if he is able to do so. However, a player can be forced to move his piece if it is liable to capture. If a player makes a move to threaten the opponent’s piece with capture, he calls out "Jinx" and forces his opponent to move the threatened piece in his next turn. If more than one piece is threatened the opponent may select which piece is to be moved. The threatened piece may move in the normal fashion and may also capture any opponent’s piece including the one threatening it.
When one player has one piece left and the other two, they can no longer jinx each other. The winner is the player who captures all his adversary’s pieces.