This is a Schulte Grid game. Players need to look at the numbers and tap on each number in ascending order. The shorter the time after all is finished, the higher the concentration.
Easy: 9 numbers
Normal: 16 numbers
Hard: 25 numbers
Highlights：
- speed up of the development of mental perception
- visual directional speed search movement.
- improve attention
Easy: 9 numbers
Normal: 16 numbers
Hard: 25 numbers
Highlights：
- speed up of the development of mental perception
- visual directional speed search movement.
- improve attention
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