In this test, boxes will appear at different locations on the screen, each containing a number. You have to try to remember which number appears in which box.

After a short period of time the numbers will disappear. What you have to do is to click the boxes in numerical sequence (i.e. beginning with the box that contained the number 1).

If you are correct the next problem will have one more box to remember. If you make a mistake then the next problem will have one less box to remember.

After 3 errors, the test will end.