here's a quick puzzle for you all

[muckshifter]

... let me know when you figure it out, no cheating.

 

[EvanDavis]

Dunno how it's done, but I am creasing myself with laughter at all comments on Youtube...

 

[TriplexDread]

Reminds me of the Chocolate puzzle I posted the other week

 

[Stano21]

Nice performance, this optical illusion is called "Missing square puzzle" ;-)

 

[Becky]

https://en.wikipedia.org/wiki/Missing_square_puzzle