| 摘要 |
<p>A logic puzzle comprises a supporting cross (1) which is arranged at its geometric centre, connected to rotary supports (3), and having 12 three-dimensional figures (5) marked with a symbol. Four three-dimensional figures (5), whose total periphery is contained within a half delimited by planes defined by the axes of the spatial co-ordinates, can be rotated together about the axis perpendicular to their separating plane.</p> |
