pipes

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

tiles

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

sand sort

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

sand sort hints

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

chroma

swap tiles to restore a smooth color gradient. tap one tile to pick it up, then tap another to swap them.

chroma hints

• fixed tiles have a small diamond — they can't be moved
• start from the corners and edges, which are always fixed
• trust your eyes — the gradient should look smooth
• use undo to reverse a swap