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How the crowd draws

311 drawings of its land border, from memory on Borderline’s World map, 16 September 2026 to 26 October 2026.

Draw Chad

In numbers

Last updated on 27 October 2026
The real oneThe crowd’s
Area1,271,000 km²491,000 sq mi1,242,000 km²480,000 sq mi2.3% smaller
Outline5,492 km3,412 mi5,554 km3,451 mi1.1% longer
Centre18.64° E, 15.28° N18.6° E, 15.3° N18.65° E, 15.25° N18.7° E, 15.3° N3 km south-east2 mi south-east
Westernmost13.45° E, 14.38° N13.4° E, 14.4° N13.98° E, 13.87° N14.0° E, 13.9° N58 km short36 mi short
Easternmost23.98° E, 19.03° N24.0° E, 19.0° N23.87° E, 15.80° N23.9° E, 15.8° N12 km short7 mi short
Southernmost15.82° E, 7.48° N15.8° E, 7.5° N15.89° E, 7.71° N15.9° E, 7.7° N26 km short16 mi short
Northernmost15.99° E, 23.44° N16.0° E, 23.4° N15.98° E, 23.08° N16.0° E, 23.1° N40 km short25 mi short

Near the land border, 53% of the crowd’s lines run inside Chad.

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.

Chad and Sudan: 1,220 km in the game, 1,403 km officially.

6 neighbours
Border withIn the gameThe crowd’s
Sudan1,220 km in the game1,403 km officially1,230 km the crowd’s0.8% longer
Niger1,153 km in the game1,196 km officially1,114 km the crowd’s3.4% shorter
Central African Rep.1,065 km in the game1,556 km officially1,101 km the crowd’s3.4% longer
Libya1,047 km in the game1,050 km officially1,015 km the crowd’s3.1% shorter
Cameroon937 km in the game1,116 km officially1,028 km the crowd’s9.7% longer
Nigeria88 km in the game85 km the crowd’s3.4% shorter

How it is measured

The crowd’s Chad: every few km along the real line, each drawing’s nearest point, inside Chad 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 311 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 Chad yourself and add your line to the next update.