Can you solve it? Are you a master of reflection?
How many different ways can you colour the square with two colours such that The square has a diagonal mirror line and a horizontal mirror line, but not a vertical mirror line?
https://www.theguardian.com/science/2020/mar/09/can-you-solve-it-are-you-a-master-of-reflection
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| @infinitymath |
Post #2211
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