tap any tile to rotate it 90 degrees clockwise. connect all the pipes into a single network with no loose ends.

tile types

hints

• connected pipes turn green
• no pipe should point off the edge of the board
• every pipe must connect to its neighbors
• use undo if you get stuck
• every puzzle is always solvable

tap a vessel to pick it up, then tap another to pour. sort all the sand so each vessel holds only one color.

pouring

• sand pours only onto the same color
• you can pour into an empty vessel
• all matching layers on top pour at once
• full vessels can't receive more sand

hints

• keep one empty vessel free as a workspace
• focus on one color at a time
• use undo to back out of dead ends
• every puzzle is always solvable

the grid shows a color gradient that's been scrambled. swap tiles to put them back in order and restore the smooth gradient.

swapping

• tap a tile to pick it up, then tap another to swap them
• tiles with a small diamond are fixed anchors — they can't be moved
• tap a selected tile again to deselect it

hints

• start from the corners and edges, which are always fixed
• look for tiles that are clearly out of place first
• trust your eyes — the gradient should look smooth
• use undo to reverse a swap
• every puzzle is always solvable