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How the crowd draws

216 drawings of its land border and 685 drawings of its coast, from memory on Borderline’s World map, 23 September 2026 to 27 October 2026.

Draw Congo

In numbers

Last updated on 27 October 2026
The real oneThe crowd’s
Area346,000 km²134,000 sq mi348,000 km²134,000 sq mi0.5% bigger
Outline4,310 km2,678 mi4,406 km2,737 mi2.2% longer
Centre15.22° E, 0.84° S15.2° E, 0.8° S15.19° E, 0.94° S15.2° E, 0.9° S12 km south8 mi south
Westernmost11.12° E, 3.93° S11.1° E, 3.9° S11.10° E, 3.94° S11.1° E, 3.9° S2 km beyond1 mi beyond
Easternmost18.64° E, 3.32° N18.6° E, 3.3° N18.54° E, 3.22° N18.5° E, 3.2° N11 km short7 mi short
Southernmost12.00° E, 5.02° S12.0° E, 5.0° S13.40° E, 5.23° S13.4° E, 5.2° S24 km beyond15 mi beyond
Northernmost17.47° E, 3.71° N17.5° E, 3.7° N17.47° E, 3.70° N17.5° E, 3.7° N1 km short1 mi short

Near the land border, 51% of the crowd’s lines run inside Congo. Near the coast, 32% run inland.

Borders and coast

Why two lengths?

A line’s length depends on how closely it is drawn. The game’s lines are simplified: they keep a point every few kilometres and cut across small bends. The official lengths, from the CIA World Factbook, are measured on other lines. A border measured on a finer line, following every bend of its rivers and ridges, comes out longer.

Coasts differ most, and either way. Some official coastlines follow every inlet and island (Canada’s 202,080 km); others are smoothed on purpose, crossing bays and sounds (the United States’ 19,924 km), and can come out shorter than the game’s.

Players draw against the game’s line and are scored against it, so the crowd’s length is compared with the game’s, both measured the same way. Set against an official length measured another way, the comparison would say more about the two methods than about the crowd.

Congo and Gabon: 1,453 km in the game, 2,567 km officially.

Congo’s coast: 176 km in the game, 169 km officially.

5 neighbours
Border withIn the gameThe crowd’s
Gabon1,453 km in the game2,567 km officially1,564 km the crowd’s7.6% longer
Dem. Rep. Congo1,385 km in the game1,775 km officially1,264 km the crowd’s8.7% shorter
Cameroon411 km in the game494 km officially430 km the crowd’s4.6% longer
Central African Rep.385 km in the game487 km officially393 km the crowd’s2.1% longer
Angola159 km in the game231 km officially188 km the crowd’s18.2% longer
The coast176 km in the game169 km officially173 km the crowd’s1.7% shorter

How it is measured

The crowd’s Congo: every few km along the real line, each drawing’s nearest point, inside Congo or outside it; the median over a short stretch is where the crowd puts the line there, and the real outline moved by it is the crowd’s. Where the move folds a narrow inlet over itself, the loop is cut.

The 901 drawings that scored 10 or more on Borderline’s World map, scribbles left out, the real line the game’s own. Area true to scale; the outline copies the real line’s detail, so its length changes only where the shape moves or a loop is cut.

Draw Congo yourself and add your line to the next update.