On the surface of a square, there are several color blocks. You need to observe and remember the distribution of these color blocks. 2. In the response area, there are ten plates, and you need to select several of them through memory and reasoning; 3. Make these plates perfectly form an Eulerian Square (Latin Square) : that is, every row and every column of each grid outside and inside the color only appear once, the challenge can be successful. -------------- We appreciate any feedback you may have and will apply it to future updates and features. With your continued support we'll do our best to turn out quality Apps.
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