I built a browser ball-sort puzzler where levels are ordered by difficulty, starting from the easiest.

I experimented with several alternative modes with the aim to have similar complexity in other environments. Each mode has its own restrictions, which gives additional challenge for each user to find its favorite mode.

Features:

- 10 different game modes; over 1000 levels combined

- near-win finish — preemptively calculates win conditions to skip redundant endgame moves

- dynamic hints about hardest and easiest color - very helpful on hard modes

- hints — ask for the next correct move when a puzzle is too hard

- undo, restart, per-puzzle progress saved in your browser

- customize shape and styling of balls

- dark/light theme

- Offline friendly; no registration, no ads