A paper-folding puzzle. A sheet of paper, a scatter of coloured dots. Fold along a crease and the two halves stack: dots of the same colour merge into one, dots of different colours refuse to share a square. Solve it when every colour is down to a single dot, then try to do it in par. 160 hand-verified folds across Easy, Medium, Hard and Expert, every one of them solved by search before it shipped, so the par on each is the true minimum.
How to play
Tap or click a dashed crease line to fold the paper along it. Undo and Restart sit under the sheet. Arrow keys move the crease, Enter folds, U undoes, R restarts.
New in v2.1
All 160 folds regenerated. Every colour now starts with at least two dots, so nothing is already finished when you open a level, and the last fold is never the only legal move left. The endgame is a decision now instead of a formality. Progress resets, since the puzzle behind each number has changed.