| 摘要 |
PURPOSE: A case puzzle is provided to maximize the convenience of assembly by using numbers, letters, or marks described on both the front surface of a case and the rear surface of a block. CONSTITUTION: The case puzzle consists of a case(1) as a base member, and a block(2) to be assembled in the case. Various numbers, letters, or marks are described in line on the front surface of the case, and in the same manner, various numbers letters, or marks corresponding to that of the case are described on the rear surface of the block. Alternately, the numbers, the letters, or the marks described on the front surface of the case is unintentionally arranged to enable a user to assemble a puzzle without any sense of boredom. In this way, the user is able to easily and conveniently assemble the puzzle by fitting the appropriate blocks into the case according to the matching numbers, letters, or marks.
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