| 摘要 |
A recreational puzzle comprises a number of identical generally planar equilateral polygon pieces. Two adjacent pieces are joined to one another apex to apex by link. Each link is pivotably connected to one piece and pivotably and slidably connected to adjacent piece. This allows the pieces to swing through a relative arc with respect to the adjacent piece. This also allows a string of pieces that have been manually manipulated to form the aimed composite shapes or desired patterns or pictures. This improves dexterity and provides entertainment.
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