Are the squares marked with A and B in different colours?
To read more about Optical illusion refer to the Wikipedia page.
Reza Deabae, Atousa Parsaei, Hamid Heidary, Reza Ahmadi- Lab2Market Scholarship
Congratulations to Atousa Parsaei (MSc student, top left), Reza Ahmadi (PhD Student, top right), Hamid Heidary (PhD student, bottom left),
