moon Moon
Draw the moon — full or crescent
The easy way to draw a moon is a crescent — but plenty of people go for a full moon. First you split on which moon, then on which way the crescent opens, left or right. It's a test of whether two imaginations line up.
What the engine watches
The shape dimension checks closure, roundness and proportions, plus drawing direction. For a crescent, which side it opens toward also feeds the orientation dimension. A full moon against a crescent is a different outline altogether, so the match stays low. A closed one-stroke outline. Compares closure (start-to-end distance), roundness, aspect ratio and clockwise vs. counter-clockwise.
How people usually draw it
The most common is a crescent bulging left with the bite on the right, drawn in one stroke from the top tip. The mirror image, opening left, is nearly as common, so pairs split about evenly. Full-moon people add craters or a face; a surprising number toss in a star or two.
How to sync better
Picturing the 🌙 emoji puts you with the majority. A quick "crescent or full? opening which way?" before you draw removes the big misses.
A little trivia
Because the Moon rotates once per orbit (tidal locking), we only ever see one face from Earth; the far side was first photographed by the Soviet probe Luna 3 in 1959.
FAQ
Is there a correct direction for a crescent?
No. The 🌙 emoji bulges left with the bite on the right, and that's what most people picture. Matching your partner is the only right answer.
Does adding a face to a full moon hurt?
If your partner doesn't, the extra strokes lower the stroke match. Fewer decorations means easier syncing — that's the basic rule of Drawing Sync.