Setting out the tubes...
Also on Android
Pour, sort, solve. Every level can be finished.
Every level is guaranteed solvable. Free, offline, no sign-up.
Water Sort Puzzle is a calm colour-sorting puzzle: pour coloured water between glass tubes until every tube holds a single colour. The rule is simple and the planning is not. Liquid only pours onto its own colour or into an empty tube, and a pour moves the whole run of a colour at once, so every move uses up space you may need later. Levels start with three colours and two empty tubes and climb to twelve colours, with some boards leaving you a single spare tube. Every level is built backwards from a finished board, so none can be impossible. Undo is free and unlimited, restart is always there, and a hint shows the next pour of a real solution. Solve levels to earn drops for new lab benches, come back for the daily puzzle and its run of days, and collect prisms from the daily gift for boosters. It is the same game as the Color: Water Sort Puzzle app on Android, and it plays in any browser on a phone, tablet or computer.