| 摘要 |
A puzzle disc including a body portion, a cover having two open slots extending inwardly from its circumference and fitted in a central portion of the body portion thereby forming a track having a neck portion between the cover and the body portion, a circular member rotatably arranged in the body portion, and a plurality of movable elements fitted in the track, whereby the degree of difficulty in playing the puzzle disc can be adjusted to fit for players with different intelligence.
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