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How the crowd draws

400 drawings of its land border and 936 drawings of its coast, from memory on Borderline’s World map, 16 September 2026 to 27 October 2026.

Draw Sudan

In numbers

Last updated on 27 October 2026
The real oneThe crowd’s
Area1,864,000 km²720,000 sq mi1,798,000 km²694,000 sq mi3.6% smaller
Outline7,150 km4,443 mi6,850 km4,256 mi4.2% shorter
Centre29.91° E, 15.96° N29.9° E, 16.0° N30.21° E, 16.04° N30.2° E, 16.0° N33 km east21 mi east
Westernmost21.82° E, 12.78° N21.8° E, 12.8° N22.95° E, 13.08° N22.9° E, 13.1° N123 km short76 mi short
Easternmost38.59° E, 18.00° N38.6° E, 18.0° N38.61° E, 18.03° N38.6° E, 18.0° N1 km beyond1 mi beyond
Southernmost24.11° E, 8.68° N24.1° E, 8.7° N24.12° E, 8.83° N24.1° E, 8.8° N16 km short10 mi short
Northernmost31.41° E, 22.22° N31.4° E, 22.2° N36.89° E, 22.00° N36.9° E, 22.0° N25 km short16 mi short

Near the land border, 58% of the crowd’s lines run inside Sudan. Near the coast, 22% 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.

Sudan and S. Sudan: 1,902 km in the game, 2,158 km officially.

Sudan’s coast: 707 km in the game, 853 km officially.

7 neighbours
Border withIn the gameThe crowd’s
S. Sudan1,902 km in the game2,158 km officially1,931 km the crowd’s1.5% longer
Egypt1,263 km in the game1,276 km officially1,200 km the crowd’s5.0% shorter
Chad1,215 km in the game1,403 km officially1,128 km the crowd’s7.2% shorter
Ethiopia663 km in the game744 km officially653 km the crowd’s1.5% shorter
Eritrea547 km in the game682 km officially521 km the crowd’s4.8% shorter
Libya382 km in the game382 km officially370 km the crowd’s3.1% shorter
Central African Rep.344 km in the game292 km the crowd’s15.1% shorter
The coast707 km in the game853 km officially593 km the crowd’s16.1% shorter

How it is measured

The crowd’s Sudan: every few km along the real line, each drawing’s nearest point, inside Sudan 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 1,336 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. The map lays the 1,000 most recent; the heat map, the crowd’s shape and every figure use all 1,336.

One small piece of Sudan, 33 km², keeps its real shape, shown flat: islands no round asks players to draw, or too small to measure. They count in no figure.

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