🧪Aqua Sort
Free online Aqua Sort (Water Sort puzzle): tap two bottles to pour, group colors together, 12 levels with undo, hints and extra bottles
Tap a source bottle, then a target: liquid pours only onto the same top color or into empty space. Gather each color into one bottle to win.
Two free extra bottles per level for emergencies. Z undo, H hint, R restart. Pour amount is the smaller of the source top run and the target free space.
How to Use
Aqua Sort is a Water Sort style liquid puzzle. Each glass bottle holds up to four layers of colored liquid. Tap one bottle as the source and another as the target to pour. Two rules govern pouring: the target must not be full, and it must be empty or already topped with the same color as the liquid being poured. The pour amount is the smaller of the source top run and the target free space, so a three-layer run into a bottle with two free cells moves only two layers. Group every color into a single bottle to win. All twelve levels, scaling from three to ten colors, are produced by a solvability-verified generator: every generated board is guaranteed solvable. Undo is unlimited, hints suggest the next move, and each level grants two free extra bottles for emergencies.
FAQ
Why can I not pour into that bottle?
Pouring requires a non-full target that is either empty or topped with the same color. A mismatched top is rejected and your tap simply reselects the target.
How much liquid moves per pour?
The smaller of the source top run and the target free space. A three-layer same-color top into a bottle with two free cells pours two layers.
Are the puzzles always solvable?
Yes. The generator shuffles from a solved state using reversible pours and verifies solvability at every step, so all twelve levels have a solution. If you deadlock, undo or add a bottle.
Is undo limited?
Never. Undo is unlimited and steps your move counter back. Hints are also unlimited; extra bottles are capped at two per level.
What counts as winning?
Every bottle must be either empty or a full single-color bottle. Once all bottles qualify, the level is complete and the next one unlocks.