Challenge the super brain! It is fun for kids and grownups!

1 Number of dots: No need to press enter
2 Dot color:
Use the form above to change the configurations:
1 Number of points
2 Show the points in colors or in black & white
3 Show / hide the answer
4 Show / hide rotating covering fan

Number of random points in the figure on the right: 1000. The figure on the left is exactly the same except one random point was removed. The task is to find the point removed.


© Copyright Ai Kan Da Guan Yuan 2017

We created many brain testing exercises like this and will be put together later.