| 摘要 |
A three-dimensional jigsaw puzzle is disclosed. The jigsaw puzzle has a skin with a picture painted on a surface thereof. The skin is formed by a plurality of pieces. A semitransparent bladder is provided inside the skin. The bladder has a pattern the same as the picture with contours of the pieces and an electrical light bulb provided therein. When the bulb is actuated, the pattern can be seen.
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