Twin Flags
Ten rounds of flags that really do get mixed up. You are given a country and pick its flag from two or three that look almost the same.
How to play
Each round comes from a group of look-alike flags: Chad and Romania; Indonesia, Monaco and Poland; Mali and Senegal; Australia and New Zealand; Norway and Iceland; Niger and India; Ireland and Ivory Coast, among others. A country's name appears at the top and the group's flags below in random order, and you tap the right one. There is no timer, so you can take a proper look. The right flag is marked green and, if you missed, yours turns red; then the game moves on by itself.
Scoring
You finish with a score out of 10. Getting all 10 earns extra XP, and the game keeps your best result. There are 11 groups and each game uses 10, so you see almost all of them every time.
How to tell them apart
Chad and Romania are nearly identical: Chad's blue is darker. Indonesia and Monaco are red over white; in real life their proportions differ, but in the game it comes down to the shade of red. Poland is the other way round, white over red. Mali and Senegal share the same colours, but Senegal has a green star in the middle. Australia has six white stars, New Zealand four red ones with a white edge. Ireland and Ivory Coast have the same colours in reverse order: Ireland's green is next to the pole. Norway is red with a blue cross, Iceland blue with a red cross.
Tips
Before you tap, think of the difference you're looking for: a star, a darker blue, green next to the pole. In the three-flag groups, such as Slovenia, Slovakia and Russia, look at the coat of arms: Russia has none, and Slovenia's is smaller and sits higher, closer to the pole. If you miss a group, it will very likely come up again next game, so that mistake gets fixed quickly.
What you learn
To look for the detail that separates two flags instead of recognising them at a glance. The same groups are used as trick options in the Daily Quiz, so what you practise here pays off there.