9 Cool Optical Illusions Explained!

The Checkered Shadow

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This optical illusion seems to be one of the most popular illusions despite it being debunked several times. Tiles ‘A’ and ‘B’ are the same color even though one seems darker. The explanation is pretty simple as it involves the way our eyes process shadows and soft lines. Our eyes will directly go to the sharper lines, which is why the в tile seems lighter.