FlipSort: Colour Sort Puzzle

Sort the colours. Flip the tube. The move no other sorting puzzle gives you.

Sort the colours until every tube holds one shade. You know how this works in three seconds - no tutorial, no wall of text.Then FlipSort gives you something no other colour-sort puzzle has: you can turn a whole tube upside down. The colour buried at the bottom is suddenly on top. Flips are limited, so every level asks two questions at once - where do I pour, and is this the tube worth turning?From level 11 there is …