Controversial riddle, only 1% of people found the answer

If you want to know if you are smart or not, try your luck by finding the missing digit in the "matrix" below.

To get accurate results, find out the rules based on the available data. The question not only requires the player to have a keen eye for observation but also needs logical and quick thinking.

Math questions only smart people can answer.

If you find the missing digit in a short time, you have an IQ that many people admire. Comment your answer and see how many people think the same way.

Hieu Lam

Source: https://vtcnews.vn/cau-do-gay-tranh-cai-chi-1-nguoi-tim-ra-dap-an-ar902038.html