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How the crowd draws the

252 drawings of its land border, from memory on Borderline’s World map, 17 September 2026 to 26 October 2026.

Draw the Central African Republic

In numbers

Last updated on 27 October 2026
The real oneThe crowd’s
Area621,000 km²240,000 sq mi619,000 km²239,000 sq mi0.3% smaller
Outline4,319 km2,684 mi4,325 km2,687 mi0.1% longer
Centre20.46° E, 6.57° N20.5° E, 6.6° N20.73° E, 6.52° N20.7° E, 6.5° N30 km east19 mi east
Westernmost14.43° E, 6.05° N14.4° E, 6.0° N14.84° E, 5.33° N14.8° E, 5.3° N45 km short28 mi short
Easternmost27.40° E, 5.12° N27.4° E, 5.1° N27.45° E, 5.09° N27.4° E, 5.1° N5 km beyond3 mi beyond
Southernmost16.18° E, 2.27° N16.2° E, 2.3° N16.35° E, 2.69° N16.3° E, 2.7° N47 km short29 mi short
Northernmost22.49° E, 11.00° N22.5° E, 11.0° N22.58° E, 10.55° N22.6° E, 10.6° N49 km short30 mi short

Near the land border, 49% of the crowd’s lines run inside the Central African Republic.

Borders

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.

Central African Republic and Dem. Rep. Congo: 1,217 km in the game, 1,747 km officially.

6 neighbours
Border withIn the gameThe crowd’s
Dem. Rep. Congo1,217 km in the game1,747 km officially1,274 km the crowd’s4.7% longer
Chad1,064 km in the game1,556 km officially1,102 km the crowd’s3.6% longer
Cameroon723 km in the game901 km officially636 km the crowd’s12.0% shorter
S. Sudan596 km in the game1,055 km officially616 km the crowd’s3.4% longer
Congo390 km in the game487 km officially368 km the crowd’s5.6% shorter
Sudan344 km in the game338 km the crowd’s1.7% shorter

How it is measured

The crowd’s Central African Republic: every few km along the real line, each drawing’s nearest point, inside the Central African Republic 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 252 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 the Central African Republic yourself and add your line to the next update.