The game is great, honestly the game is fun. That being said, however, the number of minimum moves on several levels are wrong. You could fix this by testing this- or creating an AI to solve these in the lowest number of moves.
That’s obviously not the main, problem though. When you first play it, there’s a video ad every few levels. Which, in my opinion, was already too much, but it was tolerable thanks to the great design for the game. Once you get later into the game, (and the company assumes you’re hooked on it), there’s an ad EVERY LEVEL. You can fix this by going on airplane mode- but if you’re in a text conversation and using this to pass time, you can’t turn on airplane mode to block ads. It’s a mess, and honestly annoying. I understand they need to make revenue- they could add in game purchases, and make there fewer ads. I can’t tolerate this. I’m done with the game.