| 摘要 |
The board game is played on a board divided into squares aligned along two perpendicular axes. The squares are each marked with designs and there are four sets of different designs which are randomly distributed on the board. Playing pieces (2) are placed on the squares and are marked with the same designs (5) as the squares. The upper surface of the pieces are also marked with numbers (6) and their operators. The designs are diagonal, horizontal or vertical lines or crosses or circles and they can have different colours.
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