Once I got to 37% total countries identified (seen?), it basically stopped showing me new countries. I went through five or so rounds without seeing anything that I hadn’t seen before. Which was gratifying, since I was getting 20/20 every time, but you might tweak it a little to add in new countries more frequently.

This is cool, but is testing recognition, not recall. It needs an extra challenging mode where you have to provide the country, not multiple choice.

Nicely made! I thought I'm good with flags, and then there come a question of jordan, palestine and two more similar flags.

I made a similar but uglier little party game https://geo-dude.com for my kids. Supports up to 4 players

It would be nice if the proportions of the flags were respected. For example Vatican and Switzerland have a 1:1 ratio (square).

Nepal with it's extraordinary format seems to be represented ok.

Is there a mode to run through all the countries, instead of just 20?

A while ago I practiced every day on an android app, and the pleasure I got when I finally got 196/196 was extremely satisfying.

I'd also like to recommend that flags of different aspect ratios be shown correctly.

Huh, it has grouping for the multiple choice, so for a red and white flag (2 horizontal stripes) with some stars the options are Monaco, Indonesia, Singapore, Poland. All of which are horizontally striped and have those 2 colors.

Same with the Nordic flags, which have similar geometry but different colors.

Nicely curated.

Thought this was going to be Wordle for how to download something correctly using wget.

This is a lot of fun. My 'biggest' gripe is that in the shapes quiz Tuvalu and the Seychelles are so tiny that no image displayed for me that I could see.

Nice website! Could you tell use a bit more about this project? What prompted you to make it? I've been looking for a good ad-free, account-free minimal flag learning website and this looks like a good fit.

Sinister mode: Romania versus Chad, Monaco versus Indonesia, Senegal versus Mali, Egypt/Syria/Iraq/Yemen, etc.

It reminds of Fun with Flags segments in Big Bang Theory

The flag of Paraguy says "Paraguy" on it, you might want to blur that.

Awesome app! I got 14/20.

Sheldon?

did we crash it? :(

Fun, clean, and dangerously addictive got 15/20

It should show the meaning of the colors and symbols of the flag after the user answers.

It’s really a great place to cure boredom

Probably a useful bookmark if you’re going on The Amazing Race. They always throw in a flag quiz toward the end.

18/20 on hard, some misclicks :P Anki training works!