cross-posted from: https://wolfballs.com/post/9582
Shows picture of flag, you can click on flag to reveal answer or whose flag it is, click circular arrow to reload new flag
Can also navigate with enter and tab or shift + tab
Flags are in the public domain from: https://github.com/emcrisostomo/flags
List of flags: https://infogalactic.com/info/ISO_3166-1_alpha-2
Originally written with emojis but browsers are inconsistent about displaying emojis so switched to pictures (which was way more bloated than intended).