====== Checkershadow Proof ======
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{{:gallery:checkershadow_double_med.jpg?700x272|Checkershadow Proof}}
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**The original image of the illusion**
The squares marked A and B are the same shade of gray, yet they appear different.
**The original image plus two stripes**
By joining the squares marked A and B with two vertical stripes of the same shade of gray, it becomes apparent that both squares are the same.
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I still don't believe it. The must be something sneaky going on in those images. Show me [[more_evidence|more evidence]].