The short version
A geography quiz that represents countries as nodes connected by land borders.
From the HackerLinks archive
World Graph
A geography quiz that represents countries as nodes connected by land borders.
At a glance:
First seen:2026-09-07
Last seen:2026-09-07
Times seen:1
Website:wilf.live
Why it caught our attention
A commenter directly suggested the unusual border-graph guessing game.
Where it surfaced on Hacker News
2026-09-07
“If you like this, you may like "Guess the countries just from what borders what"”
gus_massa · recommendation
Direct HN comment
Topologist's Map of the World