Andrew on Nostr: As well as switching to some nicer controls, I've set this to draw a handful of ...

As well as switching to some nicer controls, I've set this to draw a handful of coloured markers at random points on the grid. I've been playing "add walls until all the markers of each colour are on the same ribbon, and no ribbon has more than one colour of marker on it, and no ribbon has zero markers on it". The randomly generated puzzles have all so far been solvable, but I assume that isn't the case in general so if it's going to be a satisfying puzzle it needs either a much more robust generator, or else a manual step to playtest and tweak puzzles.

I did try with just two colours of dots, but that's too often trivially easy — you can almost just divide the grid into two regions and let the ribbons fill them up, or add so many walls you're not really engaging with the mechanic. "At least three" seems to be the rule, and four is pretty challenging.