All the levels are on a 4x4 grid. I haven't curated them haha, some of them are really easy and some are really hard. There's no progression, you choose the ammount of pieces and begin a random level. It's supposed to be played for a few minutes like solitaire or minesweeper.
That makes sense, though I feel like it would benefit a lot by having a series of hand picked levels to play through. Regardless, I'll pick it up tonight. Congrats again on releasing your first game!