Now, draw the lines inside to give it a 3D look, if you don't, this will never be an illusion.
This part is very complex (for some) I highlighted the squares inside with blue and red to not confuse you, overlap the lines you drew or it will not look like an illusion.
Finally, draw the front square, I saved this last because it would look WAY too hard if all of the squares were all on top of each other.
Now, if you look right at the corner pointed at with an arrow, your mind will think it is the back corner and it can jump right back to the front! If it doesn't work for you, try looking at it for 5-10 seconds and look around it.
Here is the illusion with blue color, feel free to use any color of your choice. *it is fine to include or exclude the line on the bottom right corner*
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