| 摘要 |
PROBLEM TO BE SOLVED: To enhance the difficulty of the puzzle by making it difficult to foresee the process to finish the rotary three-dimensional puzzle, to show the finished form three-dimensionally and beautifully, and to allow the puzzle to be converted into another puzzle. SOLUTION: The puzzle has a structure wherein half the number of pieces are inverted vertically at once, the main body 4 is in a cylindrical form without any corner cubes and the finished form has a three-dimensional color arrangement. It has also a structure allowing a player to disassemble and put together the puzzle pieces easily. COPYRIGHT: (C)2009,JPO&INPIT
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