Guess the flag in 6 guesses or less.
Each time you make a guess it will reveal another portion of the flag in a 2×3 grid and give you a geographical hint what shows the distance of your guess to the correct answer as well as the general direction of that distance.
Tutorial:
1. Guess a random country.
2. Continue guessing based on the 1/6th of the revealed image and the distance and direction provided based on you previous guesses.