Patience game using spherical core and mobile pieces

摘要

The game has a spherical core (1) to which three concentric layers (2,3,4) are fixed by six screws (5). The heads of the screws (6) are held in cylindrical holes in the intermediate layer (3). Eight equal parts (11) of the outer layer can each turn on itself. Between these parts there are caps (19), formed of four equal parts, that are held in a peripheral groove round a hole.