I was so thrilled when I found this optical illusion. It’s ancestor (see here), was one of the hardest optical illusions for me to understand. I had really much trouble with the original, but after few days I finally got it! When you understand the principle, you understand all the variations, like the one you see posted below! It’s pretty cool, don’t you think? Try figuring out the solution. Share it with your friends… it’ll give them some interesting moments. I love math as well, so it’s kinda “emotional” for me, if you know what I mean ;) You can also try and solve another, rather easy math optical illusion, I posted it in my early days. Enjoy!
