AbraCalc

Color Sort

Sort coloured balls into tubes so each tube contains only one colour. A satisfying logic puzzle!

Color Sort

Click a tube to pick up the top ball, then click another tube to place it

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How to play

  1. Click a tube to pick up its top ball (it highlights in orange).
  2. Click another tube to place the ball there — same colour only, or empty.
  3. Use the 2 empty buffer tubes strategically to untangle the colours.
  4. Win by filling each tube with a single colour from bottom to top.

Click a tube to select the top ball, then click another tube to place it. You can only place a ball on the same colour or into an empty tube. Sort all colours to win!

Frequently asked questions

How many empty tubes are there?
There are always 2 extra empty tubes as buffer space — use them strategically.
Can I undo a move?
Not directly — if you get stuck, use the Restart button to reset the puzzle.