| 摘要 |
<p>Semiregular or irregular polyhedron-based puzzles have at least two different types of faces. The dividing method used to create the puzzles requires that bisecting planes parallel to the faces be chosen to exclude at least one type of face. Preferably, the base polyhedron has a Buckyball (soccer ball) shape. Applying this dividing method to a Buckyball polyhedron results in (i) a center element with six axes passing through geometrical centers of pentagonal faces, (ii) twelve pentagonal rotating elements, and (iii) thirty mobile elements of tetrahedral shape. The mobile elements are exchangeable between adjacent groups. In another embodiment, sliding elements are superimposed over the mobile elements to enable sliding motion in addition to shifting/rotating motion. Different indicia patterns can be used to modulate the difficulty level of the puzzle. The same dividing method can be used on a sphere to obtain a completely spherical puzzle.</p> |
