Flags
Levels
Levels
One hundred and ninety of the world's flags, each with a colour removed. Flags are the hardest easy category on the site: everyone knows what colour a flag is, and almost nobody knows which red.
Official flag colours are specified precisely and vary far more than memory suggests — one country's red sits well away from another's, and the differences are exactly the size this game measures. The whole category is playable in the browser, ten stages at a time.