Sort Dock is a calm color-sorting puzzle that runs in your browser. Each level starts with a row of tubes filled with a mix of colored cargo. Your job is to pour cargo between tubes until every tube holds a single color, with no mixing.
| Action | Desktop | Mobile / touch |
|---|---|---|
| Select a tube | Click a tube to lift it | Tap a tube to lift it |
| Pour cargo | Click the target tube | Tap the target tube |
| Undo a move | Undo button | Undo button |
| Start a new round | R key or New round button | New round button |
The board is a row of clear test tubes on a dock. Each tube holds zero to four layers of colored cargo. At the start of a level, cargo is mixed across the tubes with two extra empty tubes you can use as scratch space. The level is solved when every tube either contains a single full color or is empty.
Three-color levels use five tubes total: three mixed plus two empties. Four-color levels use six tubes total: four mixed plus two empties. Tube capacity is always four layers.
Yes. If the top two or three layers of a tube are the same color, they all pour together as long as the target accepts the same color and has room. The pour stops the moment the next layer is a different color.
No timer. Your score is reduced by the number of moves you make, so the goal is to solve the board in as few moves as possible without burning undos.
Tap New round in the toolbar to start the level over. Your best score is preserved.