After launching the application, you will see a car. You need to remember the digits on its license plate.

After 2.5 seconds, the car will disappear and buttons with answer options will appear.

If you click on the button with the correct answer, the number in the upper left part of the screen will increase by one.

If you click on the button with the wrong answer, the number in the upper right part of the screen will increase by one.

After this, a car with new digits on its license plate will appear on the screen.

If you haven't managed to memorize the digits just click on the bottom button to update them.

Using the slider and arrow buttons, you can set the time the car stays on the screen from 30 to 5000 milliseconds, that is, from 0.03 to 5 seconds.

Using the plus and minus buttons at the top, you can set the number of digits displayed on the license plate from 3 to 7.

By gradually increasing the number of digits and decreasing the display time, you can make the memorisation task more difficult.

By pressing the buttons with the letters N in the top row, you can change any digit in the car license plate to a letter and back. In this way, you can get combinations of letters and digits, for example, AB123CD.