Sequential planning
Axiom Spectrum
Pick a tube, then pick where to pour. The top run of one color moves as far as it fits, but only onto the same color or into an empty tube. Sort every color into its own full tube.
Free in the browser, no account needed.
Rules
- Each tube holds 4 layers.
- You can pour onto an empty tube or onto the same color on top.
- The whole top run of a color moves, as much as fits in the target.
- You win when every tube is empty or full of a single color.
- Expert levels may have a move limit.
How to play, step by step
- Pick a tube. Tap a tube to lift it. The color on top is what you will pour.
- Pour on the same color. Pour onto the same color or into an empty tube. The whole run of that color moves.
Controls
- Click or tap a tube, then the tube to pour into
- Arrow keys move between tubes, Enter or Space picks and pours, Esc cancels
- Z to undo, Y to redo, H for a hint
Difficulty and levels
Easy levels use 3 to 4 colors, medium 5 to 7, hard 8 to 10 and expert 11 to 12, some with a move limit. Each level is proven winnable by a solver before you see it.
Axiom Spectrum: frequently asked questions
- Is Axiom Spectrum free to play?
- Yes. Axiom Spectrum is free in the browser with no account, no download and no ads. Your progress is saved on your device.
- How do you play Axiom Spectrum?
- Each tube holds 4 layers. You can pour onto an empty tube or onto the same color on top. The whole top run of a color moves, as much as fits in the target. You win when every tube is empty or full of a single color. Expert levels may have a move limit.
- How do the levels and difficulty work in Axiom Spectrum?
- Easy levels use 3 to 4 colors, medium 5 to 7, hard 8 to 10 and expert 11 to 12, some with a move limit. Each level is proven winnable by a solver before you see it.
- Can I play Axiom Spectrum on my phone or tablet?
- Yes. Axiom Spectrum works in any modern browser on phones, tablets and computers, with touch, mouse and keyboard controls.
- Is there a daily Axiom Spectrum puzzle?
- Yes. Every day there is a new daily puzzle, the same for every player, alongside unlimited numbered levels.
More puzzles in Axiom
Axiom MergeSlide, merge, charge and set off chain reactions.
Block ArchitectFit polyomino pieces into a shaped board.
Circuit FlowRotate tiles until every lamp is lit.
Logic GridReveal a hidden picture from number clues.
Shift LabPush blocks onto targets without trapping them.
Axiom SudokuFill the grid so no digit repeats in a row, column or box.
Axiom MahjongMatch pairs of open tiles until the board is clear.
Axiom TacticsFind the winning move in real chess positions.
Axiom Mind LabFive kinds of reasoning puzzles, each with a clear explanation.
Axiom Word SearchFind every hidden word in a grid of letters.
Axiom PathDraw one line through every cell, numbers in order.
Axiom DuoBalance suns and moons in every row and column.
Axiom DominoPlace every domino so each region meets its rule.
Axiom JamSlide each block out through the gate of its colour.
