| 摘要 |
<p>The puzzle ball consists of two spheres, the inner (5) being slightly smaller than the outer (1). The inner sphere or ball (5) has a number of coloured discs (6) appropriately placed inside its circumference, and the outer ball (1) has corresponding identity circles (4) round each opening or window (3). The outer ball (1) has one or two openings (2) to enable the player to rotate the inner ball. The outer sphere or ball (1) can be made from clear plastic or black plastic which would make the puzzle more difficult, and the 2 halves of the outer sphere can be made to rotate at the center or be permanently fixed. <IMAGE></p> |
