How well do you see the Earth blind?

You'll get a latitude and longitude. No map, no search, no peeking. Just decide: land or water? Twelve Claude models took this test at all 16,200 points on a 2° grid. Your answers, pooled with everyone else's, build a crowd version of that map.

• 20 points per round, drawn at random with equal probability per unit area of the globe, so the poles don't get oversampled.
• Keyboard: L or ← for land, W or → for water.
• Add a name to get on the leaderboard. Leave it blank to play anonymously.

Round complete

"vs. crowd" adds up (you were right − share of players who got that point right). Getting a point most people miss earns a lot. Missing an easy one costs a lot.

land water you got it wrong

Leaderboard

The crowd's Earth

Every answer so far, on the same 2° grid as the Claude figure. White means land, black means water, grey means nobody has answered there yet.

Hardest points so far