For start the game, required to push the corresponding << START >> button.
After will appear the random state name from the list of 48 US heartland states.
Then required to select on choropleth map the corresponding state & click on it.
After that the tested state will excluded from the list of US states by web application.
To test the next random state, you should push << Next >> button, until states list is over.
Or you can restart the game by clicking on round button with corresponding icon.
To save the quiz test results push on round download button.
This useful educative game may applied for educational purposes.
Namely it can be used as a geographical test for the students.