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A challenge for your brain to remember and react, you will need to be alert and highly focused to complete this challenge. When participating in the challenge, you are taken to a screen area, in the center of the screen, a number will appear briefly and disappear. At this time, you need to immediately remember the value of this number, when the number disappears, the challenge will begin. You have 3 seconds to complete the number of clicks on the screen, the number of clicks is the value of the number that appears briefly.
