Why does the game score equilateral triangles specifically?

Equilateral is the most symmetric triangle type — one unique shape (unlike isosceles or scalene), which makes scoring objective. If we scored any triangle, a thin sliver shape would be trivially easy to draw, so the constraint forces actual geometric precision.

My triangle looks equilateral but scores low — why?

The scoring uses the three vertex points identified by the sector algorithm. If your path is very uneven or you drew extra loops, the algorithm may pick suboptimal vertices. Draw smooth, confident strokes and close the shape cleanly for the best detection.

Is drawing a triangle harder than drawing a circle?

For most people, yes. A circle is one continuous smooth motion with no direction changes. A triangle requires three straight segments connected by sharp 60° turns. Motor research shows that tasks with abrupt direction changes are significantly harder to execute accurately than smooth curves.

Can You Draw a Perfect Triangle?

Drawing a perfect triangle — specifically an equilateral one with all three sides equal — turns out to be a surprisingly reliable test of both motor control and spatial symmetry. The game bins your drawn points into three 120° sectors around the centroid and identifies the farthest point in each sector as a vertex. It then measures how evenly matched the three sides are. An equilateral triangle requires each interior angle to be exactly 60°, which feels intuitive but consistently eludes freehand attempts.

How to Play

Press Start and draw a triangle in one continuous, closed motion.
The game divides the canvas into three 120° wedges around your drawing's centre and finds the outermost point in each.
Press Submit. A blue dashed equilateral overlay shows the ideal triangle fitted to your vertices.
Score is based purely on side-length variance — the closer your three sides are to equal, the higher the score.
You need at least 15 data points in your path (i.e., don't draw too tiny or too fast) for scoring to engage.

Why It's Hard

Unlike a square, a triangle has no axis-aligned sides to guide your hand. The 60° angles feel unfamiliar compared to the right angles you encounter constantly in everyday environments. Your visual cortex also has no strong prior for equilateral triangles the way it does for rectangles — making the "does this look right?" feedback loop less reliable. The asymmetry of wrist extension vs. flexion also means the three sides will naturally come out different lengths unless you consciously compensate.

Tips

1Imagine a clock face: start at 12, draw down-right to 4, across to 8, then back up to 12. This maps the three sides onto natural arm gestures.
2The longest side tends to be whichever one you draw first — slow down slightly on sides two and three to even them out.
3Close the shape back to your exact starting point; a gap between the start and end confuses the corner detection.

FAQ

Why does the game score equilateral triangles specifically?: Equilateral is the most symmetric triangle type — one unique shape (unlike isosceles or scalene), which makes scoring objective. If we scored any triangle, a thin sliver shape would be trivially easy to draw, so the constraint forces actual geometric precision.
My triangle looks equilateral but scores low — why?: The scoring uses the three vertex points identified by the sector algorithm. If your path is very uneven or you drew extra loops, the algorithm may pick suboptimal vertices. Draw smooth, confident strokes and close the shape cleanly for the best detection.
Is drawing a triangle harder than drawing a circle?: For most people, yes. A circle is one continuous smooth motion with no direction changes. A triangle requires three straight segments connected by sharp 60° turns. Motor research shows that tasks with abrupt direction changes are significantly harder to execute accurately than smooth curves.

Built by

Ethan R. Caldwell

Game Developer · Wilmington, DE

Designed Can You Draw a Perfect Triangle? and 46 other browser puzzles. Game developer based in Wilmington, Delaware. Hardcore puzzle gamer at heart — obsessed with logic puzzles, sokoban-style mechanics, and physics-based brain teasers. Off the clock, unwinds with ARPGs, RPGs and JRPGs.

[email protected]