All Countries by Area - Sort each group of 6 according to size
Countries are listed alphabetically and put in groups of 6. For each group, write the corresponding letters (A to F) starting from the largest and ending with the smallest. Eg: if the alphabetical order corresponds with the size order, you'll have to type ABCDEF
Awesome! It took me too long to figure out what I was doing (presumably some people read instructions before starting) or I might have finished. Now I'll never know.
Yellow box should be added.
Why is DABECF already shown?