| 摘要 |
A jigsaw puzzle is provided with a plurality of inner puzzle pieces defining a complete inner puzzle depicting a preselected object, and a plurality of outer puzzle pieces defining a complete outer puzzle depicting a frame around an opening having the shape of the preselected object. In another aspect of the jigsaw puzzle, the plurality of inner puzzle pieces collectively form a first image on a front face and the plurality of outer puzzle pieces collective form a frame image on a front face, while the inner and outer puzzle pieces collectively form a second image on a back face of the puzzle pieces. |
