Every clue. One perfect order.
Put the shapes in order, from left to right.
No timer. One solution. Take it one clue at a time.
Fresh clues, with exactly one checked solution.
Use the clues to put the objects in order, from left to right. Each puzzle has exactly one solution.
Drag an object to a new position, or tap an object then tap where it should go. Other objects shift along to make room.
Somewhere before means anywhere to the left. Immediately before means directly to the left, with no object between them.
Exactly one object between means a gap of one, in either order. At neither end means not first and not last.
Check answer marks clues that match and clues needing a change. Nudge explains a position forced by the highlighted clues, without moving anything for you.
Undo reverses a move. Restart puzzle keeps the same clues. New puzzle generates fresh clues. Shapes and names accompany colours. With a keyboard, arrow keys move focus; Enter or Space selects and places.