WaterSortPuzzle.jl is a Julia package to represent, analyze and solve
so-called “water sort” puzzles (sometimes also called “ball sort”) that
got popular around 2021–2022.
If you haven't tried this game, a version can be played free of charge on https://www.coolmathgames.com/0-lipuzz-water-sort
In a the Julia command line (REPL), enter the package mode by pressing ] and type the package installation command:
add https://github.com/pierre-haessig/WaterSortPuzzle.jl.git
See the demo_WaterSortPuzzle.jl example script.
You can find several other Water sort puzzle solvers on Github, see https://github.com/search?q=water%20sort&type=repositories. Most popular ones seems to be written in Go. However, this solver was inspired by Raymond Hettinger presentation at US Pycon 2019.