First choose a difficulty by typing ‘beg’, ‘int’, ‘adv, or ‘exp’ – Beginner is 1 degree longitude, Intermediate 0.5 degrees, Advanced 0.25 degrees, and Expert 0.1 degrees. Then, enter 10K+ North American population cities and all 10K+ population cities within that longitude will automatically fill in.

North America refers to geographic North America (that’s why no Hawaii).

hugequiz Premium members will see the 25 largest missed cities at the end of the quiz as large, purple markers.