Draw around real population
Headcount turns population density into a daily drawing puzzle: one target, one loop, and a measured result after you submit.
Learn density patterns
The map teaches where people cluster: river valleys, coastal belts, island cities, megaregions, and the empty spaces between them.
Pair it with city scale
Geo Blackjack trains the city-level version of the same skill by making each population estimate part of a risk decision.