Preview
What is Color Sort Master?
Color Sort Master is a tactile ball-sorting puzzle game where you transfer glossy spheres between laboratory test tubes until each vial is uniformly filled with four balls of the same hue. Spanning 100 handcrafted levels across 5 distinct chapters, the puzzles scale from 3 vibrant colors up to 7, featuring free Undo, optimal-move Hints, and a 3-star rating system based on proven BFS minimum moves. With no countdown timer and full colorblind symbols, it delivers a calm yet deeply rewarding mental workout.
Key facts
- Genre
- Puzzle
- Players
- 1 (single player)
- Goal
- Fill each tube with 4 matching balls
- Campaign
- 100 levels across 5 chapters
- Star rating
- 3 stars for BFS optimal moves
- Capacity
- 4 balls maximum per vial
- Session length
- Under 5 min
- Platform
- Web browser
- Devices
- Desktop, tablet, mobile
- Price
- Free
- Sign-up
- Not required
How do you play Color Sort Master?
Tap a test tube to lift its top ball into the air, then tap another tube to drop it in. You can only move a ball into an empty tube or on top of a matching color, provided the destination tube has not exceeded its 4-ball capacity. Consecutive balls of the same color will automatically transfer in sequence if space permits. Successfully sort every color into separate tubes to clear the level and unlock the next challenge.
Tips & strategy
- Keep empty spare tubes clear until you need to unblock buried colors beneath mixed stacks.
- Look for tubes with 3 matching balls early on and prioritize finding the fourth to complete and lock the tube.
- Tap the Hint button if you are uncertain of the optimal sequence; it calculates the exact BFS shortest route.
- Enable Color Symbols in Settings if subtle shades are difficult to distinguish under ambient lighting.
What are the controls in Color Sort Master?
| ACTION | INPUT |
|---|---|
| Select and transfer balls | Tap or click tubes |
| Select tube by number | Keys 1-9, 0 |
| Undo previous move | U / Z key or Undo button |
| Show optimal hint | H key or Hint button |
Plays with keyboard, mouse, and touch. Fullscreen works in desktop and mobile browsers.
Color Sort Master FAQ
What are the rules for moving balls between tubes in Color Sort Master?
You can move the top ball from a selected tube into another tube if the destination tube is completely empty, or if the topmost ball in the destination tube matches the moving ball color and the tube has fewer than 4 balls. If multiple matching balls sit together on top, they transfer sequentially up to the available capacity.
How is the 3-star rating determined on each level?
Each of the 100 levels features a precomputed minimum moves benchmark verified by breadth-first search. You earn 3 stars if your total moves match the optimal benchmark. Completing the level within 3 extra moves awards 2 stars, while any valid completion earns at least 1 star.
Is it possible to get completely stuck in Color Sort Master?
Yes, if you place contrasting colors across all available tubes such that no matching pairs remain on top, a 'No valid moves' prompt will appear. You can freely use the Undo button to step backward or tap Restart to reset the level instantly without penalty.
How do keyboard shortcuts work on desktop computers?
You can press keys 1 through 9 (and 0 for the tenth tube) to select and transfer balls between tubes quickly. Press U or Z to undo moves, H to reveal the next optimal hint, and R to restart the current puzzle layout.
Does Color Sort Master support colorblind players?
Yes, opening the Settings dialog allows you to toggle Color Symbols on. Each ball color then displays a unique high-contrast geometric glyph (star, ring, triangle, diamond, heart, hexagon, moon, or cross), ensuring effortless recognition regardless of visual color perception.
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