Can you find the curved line in this optical illusion? It isn't easy

Do you have a great eye for detail? Then spotting the curved line among the straight ones in this illusion should be too hard for you.

perception - How come we see a line when there isn't one in this picture? - Psychology & Neuroscience Stack Exchange

How to draw 6 Curve line optical illusion drawings, step by step tutorial

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optical curved line illusion #zentangle #pattern #drawing #doodle #opt

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Find the hidden faces in these 7 tough brainteasers

Can you find the curved line in this optical illusion? It isn't easy

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