Show HN: Learn where countries are on the world map with Spaced Repetition

What list did you use for the list of "countries"? (I only ask because the first one I got was Northern Cyprus which is only recognized by Turkey and not a UN state).

edit: I see the code is fetching from the following, which has 177 features:

https://raw.githubusercontent.com/holtzy/D3-graph-gallery/ma...

This is a great idea, though I feel like if you guessed the country accurately the first time I would like it move on to another country. That or a button that lets me skip to new countries. I know where Australia and it's a bit tedious to be forced into spaced repetition for it three times.

Nice little game! One correction: Swaziland has been called Eswatini since 2018. Lots of websites still use the old name, unfortunately.

Some Welsh, Scottish and Northern Irish people may take issue with your definition of "England"

Nice work! It's quite cool.

Feedback:

  - It'd be great to be able to move the map around, zoom in / out - staying in one place feels a bit restricting.
  - For some smaller countries you can't actually see where they were once the ring is put over them
  - Once a country has been identified it'd be handy to see their neighbouring countries to add some more context to where a country is.
  - It'd also be nice to learn a bit more about a country (e.g. unique things about it) that may help further cement the idea of a country so that it's more than just a name on a map.

Love this! Played Worldle (https://worldle.teuteuf.fr/) for a while and this would have been helpful.

Great application of spaced repetition beyond cards.

Nice job!

A few observations & thoughts:

- With remote islands somewhere in the oceans, the last zoom level isn't very effective since the map will essentially only show the island you're supposed to identify.

- The map's resolution could be higher.

- The challenge (top right) doesn't work for me in Firefox for Android. It always tells me I have guessed wrong (as if I had accidentally tapped somewhere on the map) when in reality I haven't even made a guess in the first place and was waiting for the game to tell me which country to identify.

I'd like to play this on my phone but everytime I try to zoom or pan it thinks I'm making a guess in the middle of the ocean. Also it often gives me a success when the country is definitely not within the chosen circle. Sometimes it starts a new view with the circle already in the right place.

Love it!

Last summer I put together a flag quizzing game with my niece, who's a geography nerd: https://flagsaroundthe.world/

I think minimally contrastive examples work well for learning, i.e. you want to first learn to distinguish between broadly different categories, and focus on more and more similar examples over time. This little app doesn't have scheduling at all, it just samples examples based on previous responses, so sampling examples you got right exponentially less often as you keep answering correctly. I think sampling has some interesting advantages to SRS scheduling actually. Add new "items" becomes a straight sampling problem, where you can set a constant probability for each item that hasn't been seen yet.

This is awesome, I got way more sucked into this than I expected. If you're open to adding more features, a "custom playlist" would be really cool. I'd love to drill myself on the Balkans or West Africa, for instance.

This is so cool. I modified the script so that the countries are a bit darker (#777), and I found that it helped the borders pop a lot more. It would probably be equally interesting to play this game with no borders at all.

Not to scope creep, but it would be great if users could pick from 1 or 2 themes. Or maybe just refactor it so that changing a global var from the javascript would let you change the colors.

edit: also the collective north and south poles take up about 60% of the zoomed out map. I bet you could crop most of antarctica and a significant portion of the upper northern hemisphere without degrading the experience.

This is an absolutely excellent way to learn, I am surprised at just how effective it was. I'd love a "manual" mode that let me discard countries/mark them to stay in rotation.