Type 'easy' or 'hard' to begin the quiz. Easy is a 5-degree grid, hard is a 2.5-degree grid. Then, try to name the largest cities in each square IN ORDER. To name a city, you must first click on the grid square to make it have a GREEN border. Then, type in the city answer for that square followed by a '.' (a period).
The squares will start with '0/5' (or maybe fewer cities if less exist in that square). Click on a square and enter the largest city in that square not yet answered (so, the largest city if you have yet to answer a city in that square). You will then have '1/5' and need to click on that square to name the 2nd largest city, and so on until you complete all the cities up to 5 (or less if less exist). If you name an incorrect city in a square it becomes 'locked' and turns red and you can no longer accumulate cities in that square.
You receive 1 point for the largest city in a square, 2 for the 2nd largest, and so on.
AK and HI are NOT included in this quiz.
At the end of the quiz the largest remaining city you haven't named will be shown in each square.
Quiz Takers 
Should not Boise City be on here?
The one in Idaho I mean.
I don’t think there currently is a city named “Boise City” – there’s just “Boise” Idaho.
I’m not positive what the official name is, but my understanding is it is officially Boise City, Idaho. The city itself interchangeably refers to itself as the City of Boise (which would not count) and Boise City. The city code is specifically called the “City Code of Boise City.” The mayor’s Covid-19 public health orders have all been issued by the “Mayor of the city of Boise City.” The census designates it as Boise City, but that may be to distinguish it from Boise County.
I refer to it as Boise in all my quizzes. Even the city’s official website just says Boise so I will leave it as that.
Oklahoma’s seems to use the word City:
https://en.wikipedia.org/wiki/Boise_City,_Oklahoma
I so badly wanted “New Jack” to be a bonus answer.
No New York?
the city’s name is ‘New York’ – city is only added to distinguish it from the state…officially it is ‘City of New York’