How many flags are in the flag quiz?

All 195 countries: the 193 UN member states plus the two UN observer states, Vatican City and Palestine.

Which flags are hardest to tell apart?

Chad and Romania are nearly identical blue-yellow-red tricolours; Indonesia and Monaco are both red over white (Monaco's is shorter); and Ireland and Côte d'Ivoire use the same colours in reverse order.

Is Nepal's flag really not a rectangle?

Yes. Nepal's flag is two stacked pennants, the only non-rectangular national flag in the world.

How does streak mode work?

You keep going until your first wrong answer. Your best streak is saved in this browser so you can try to beat it.

Flag Quiz: Guess the Flags of All 195 Countries

Flags that fool everyone

Chad vs Romania

Indonesia vs Monaco

Ireland vs Côte d'Ivoire

Australia vs New Zealand

Niger vs India

Luxembourg vs Netherlands

Chad and Romania use almost the same shades of blue, yellow and red. Indonesia and Monaco are both red over white and differ only in proportions. Australia and New Zealand both carry the Union Jack and the Southern Cross; Australia's stars are white and include the large seven-pointed Commonwealth Star; New Zealand's four stars are red with white borders.