Hardest Flags to Guess (and How to Remember Them)

The hardest flags to guess are not the busy ones with dragons and coats of arms. They are the look-alikes: pairs and trios of flags that use the same colors in the same layout. Chad and Romania, Indonesia and Monaco, Ireland and Côte d’Ivoire, and Australia and New Zealand trip up more players in our flag quiz than any other flags. Below are the toughest groups, the one detail that tells each flag apart, and a memory trick for every pair.

1. Chad and Romania (plus Andorra and Moldova)

Both are vertical stripes of blue, yellow and red. They are so close that Chad once raised the question at the United Nations. The difference is the blue: Chad uses a darker, deeper indigo, while Romania’s blue is brighter. Andorra and Moldova use the same three colors but add a coat of arms in the middle.

Remember it: no emblem means Chad or Romania. A darker blue points to Chad.

2. Indonesia and Monaco (and Poland)

Two horizontal bands, red over white, on both flags. The only difference is the shape: Monaco’s flag is squarer (4:5) and Indonesia’s is longer (2:3). Poland flips the order: white over red.

Remember it: in a quiz with no ratio clue, think of size. Indonesia is a huge country with a long flag; Monaco is tiny with a short, stubby one.

3. Ireland and Côte d’Ivoire (and Italy)

Three vertical stripes of green, white and orange, in opposite orders. Ireland has green next to the flagpole; Côte d’Ivoire has orange next to the pole. Italy swaps the orange for red.

Remember it: on Ireland’s flag the green sits next to the pole, and Ireland is famous for its green fields. Orange at the pole means Côte d’Ivoire.

4. Australia and New Zealand

Both are dark blue with the Union Jack in the top corner and the stars of the Southern Cross. New Zealand shows four red stars with white borders. Australia shows white stars: the Southern Cross plus a large seven-pointed Commonwealth Star under the Union Jack.

Remember it: New Zealand has fewer stars and they are red. Six white stars mean Australia.

5. The Netherlands and Luxembourg

Horizontal red, white and blue on both. Luxembourg’s blue is a lighter sky blue and its flag is a little longer, while the Netherlands uses a darker blue.

Remember it: Luxembourg is the light one. Russia and many other flags use the same colors, but never in this exact top-to-bottom order.

6. Mali, Senegal, Guinea and Cameroon

Four West and Central African flags built from green, yellow and red vertical stripes. Mali is plain green, yellow, red. Senegal is the same with a green star in the middle. Guinea reverses the order: red, yellow, green. Cameroon uses green, red, yellow with a yellow star.

Remember it: start from Mali (plain), add a star for Senegal, flip it for Guinea.

7. Slovenia, Slovakia and Russia

All three are horizontal white, blue and red. Russia is plain. Slovakia adds a red shield with a white double cross on blue hills, placed toward the flagpole. Slovenia adds a smaller shield in the top corner showing a white mountain (Triglav) and three gold stars.

Remember it: plain is Russia, the big cross is Slovakia, the little mountain is Slovenia.

8. Colombia, Ecuador and Venezuela

Horizontal yellow, blue and red. Colombia and Ecuador both have a double-height yellow band; Ecuador adds a coat of arms with a condor. Venezuela has three equal bands and an arc of eight white stars.

Remember it: a bird means Ecuador, stars mean Venezuela, nothing means Colombia.

9. Norway and Iceland

Both use the Nordic cross with a white border. Norway is red with a blue cross; Iceland is blue with a red cross.

Remember it: Iceland is the cold, blue one.

10. Honduras, Nicaragua and El Salvador

Three Central American flags with blue, white, blue horizontal bands. Honduras has five blue stars in the middle. Nicaragua and El Salvador each have a coat of arms, with different words written around it.

Remember it: stars mean Honduras.

The few that stand out on their own

Some flags are hard for a different reason: you have simply never seen them. Nepal has the only national flag that is not a rectangle (two stacked pennants). Bhutan has a white thunder dragon across a yellow and orange field. Kiribati shows a frigatebird flying over a rising sun and ocean waves. These rarely get mixed up once you have seen them a couple of times, so they are quick wins.

How to practice the tricky ones

1. Group, do not list. Learn look-alike groups together, as above. Your brain stores the difference, not two separate pictures.
2. Say the one detail out loud. “Darker blue, Chad.” Short spoken rules stick better than staring.
3. Use a hard-mode round. The hard flag quiz leans on these groups on purpose.
4. Spin random flags. The random flag generator shows one flag at a time; name it before you read the answer.
5. Watch for fakes. In our Which Flag Is Real? video, every round shows one real flag and one fake that has been mirrored, turned upside down or recolored. Spotting the fake trains the same eye for detail.

When you feel ready, try guess the flag and see how many of the look-alikes you get right.

FAQ

Which two flags are almost identical?

Chad and Romania are almost identical (blue, yellow and red vertical stripes, with Chad’s blue slightly darker). Indonesia and Monaco share the same red-over-white design and differ only in shape.

Which country has a flag that is not a rectangle?

Nepal. Its flag is made of two stacked triangular pennants, and it is the only non-rectangular national flag.

How do you tell the Australian and New Zealand flags apart?

New Zealand’s flag has four red stars with white borders. Australia’s has six white stars, including a large seven-pointed star under the Union Jack.

How many flags are in the Quiz Zoomies flag quiz?

195: one for every UN member state plus Vatican City and Palestine.