1) The objective of this game is to test your powers of estimation.
2) You will have to estimate a series of fractions (half, third, fifth, seventh and ninth). Your accuracy (the one that qualifies for a record) is the average of all your estimates.
3) When it is time to estimate, there will be two points on the screen. Depending on the fraction to estimate, click to the right of the leftmost point. For example, suppose the distance between the two points is 10 units and you are to estimate a fifth. Your objective is to click 2 units to the right of the leftmost point.
4) There is a time limit to how long you can make your estimate. This is indicated by the red line that is at the bottom of the screen. When it reaches the end of the screen, your time has expired.