| 摘要 |
<p>The puzzle is made up of two dimensional geometric shapes (1) cut from cardboard of plastics. These shapes must be fitted together in the correct manner and sequence in order to form a regular rectangular shape. A series of puzzles is provided, each forming a progression in skill level, from very simple to advanced. The parts are shaped as parallelograms, diamonds, rhomboids pentagons, rectangles, etc. and the surface of each part is matt to prevent eye fatigue. The simpler puzzles have all their parts of one colour, the more advanced have parts of different colours but not necessarily forming a pattern.</p> |
