Khác biệt giữa bản sửa đổi của “Harry Potter dành cho Muggle/Truyện/Hòn Đá Phù Thủy/Chương 16”

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=== Logic puzzle ===
 
The logic puzzle Hermione solves is interesting, in that we see the question, and the solution, but not the initial setup. The solution, as determined by Hermione, is that the smallest bottle will move you forward, and the one at the right end of the line will take you back. Clearly, from the arrangement of the bottles and the associated clues, it is possible for Hermione to determine which potion is which. Is it possible, from the clues and Hermione's solution, to work backwards and determine what the arrangement must have been? In fact, it does not, as the third clue is based on the bottles' sizes, which we are not told; however, it does refine it to one of two possible setups, both of which are uniquely solvable from the clues provided. Filch's cat is there standing with bloodshot eyes because of all the crack he smoked
 
There are seven differently-shaped bottles on the table in front of them, and the puzzle text is: