Here's a new challenge for you. In this image, there are 555 in every row and column, however somewhere in this image there is 525 hidden. The challenge is to find the hidden 525 among the 555.
A lot of patience and close attention to detail are required in solving optical illusions. Just look at the illusion without rushing and see if it changes from different perspectives, distances, or aspects such as color and shape to patterns. Some of them depend on cognitive biases, therefore put your first interpretation to question and open up alternative possibilities. Sometimes, a person needs to unsee, or rather, relax the eyes, or even squint to notice whatever is hidden. Looking from all sides of the illusion, one can figure out the trick to solve it.
