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Intermediate

Spiegel im Spiegel II

Spiegel im Spiegel II
Spiegel im Spiegel II

A square containing a square with two extended sides. What is the blue fraction?

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Solution

The blue fraction is 1/5.

Solution to a more general case.

More solutions: https://x.com/Mirangu1/status/1933079314582450644

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