| 摘要 |
PROBLEM TO BE SOLVED: To ensure an equal-interval arrangement and reliable toppling of dominoes, an easy arrangement even into a complicate pattern, and carrying of the dominoes kept set to an arbitrary position, in a domino toppling game. SOLUTION: A thick board has a plurality of rectangular slots of an enough size to accommodate the dominoes and of such intervals as cause the dominoes to pattern on a floor or a table and to topple reliably. An underlay plate is laid under the board to prevent the dominoes set in the board from falling down until they are set in a final arrangement position. In the final arrangement position, the underlay plate is pulled away and then the board is lifted up parallel by means of a slide frame to leave only the dominoes arranged on the floor or table.
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