About this game
There is no timer, no lives and no way to lose. Any move can be undone, and undo is free as many times as you need. Every level is guaranteed solvable: the layout is checked by a solver as it is generated, so a dead end is always the result of a move rather than bad luck. If you do run out of moves, you can take an extra tube.
Difficulty grows gradually: from four colours to a dozen, from one spare tube to tight layouts where every move counts. Progress is saved to the cloud and follows your account to another device. A leaderboard tracks the furthest level reached.
How to play
Tap the tube you want to pour from — it lifts up. Then tap the tube you want to pour into, and the water moves across on its own.
You can only pour onto the same colour or into an empty tube, and only when there is room at the top. All matching layers sitting on top move together in one go.
The level is done when every tube holds a single colour; empty tubes count as done too. The arrow button undoes your last move and the circular arrow restarts the level. The bulb shows a strong next move — three hints are free, and more can be earned by watching a video. The tube button adds one more container when you are out of moves.