I really enjoy this game. I got pretty addicted a couple years back and decided that to truly "beat" the game, I'd learn c# and program a bot that could beat it faster than I could. My handiwork is here: https://github.com/Loufe/GroundPenetratingRadar . I'm not a career programmer so it's not great and the main solving uses heuristics (but I intentionally avoided looking up how others programmed their solver). Still a great, simple game.