Dodecahedral device for logical reasoning games, divided into four forms of elements which can change position by means of rotation

摘要

Dodecahedral device for logic reasoning games, divided into four forms of elements which can change position by means of rotation. Compared with "Rubik's cube", the device has a larger number of combinations, a different system of arrangement and a practical shape for the hands and the pocket. It is divided into four forms of plastic elements: a central dodecahedral element (1) having six holes, the axes of symmetry of which are those of this element. Axial elements (2) fixed to them, capable of turning about their axes, that is to say the abovementioned axes. "Inter-axial" elements (3) linked to these elements, support parallelipipedal elements (4), and these two sorts of elements rotate about these axes. The elements form a compact dodecahedron, the groups of eleven elements of which can turn together. This device, being a technical solution, may also be used in other fields. IMAGE