Fun game but
It’s fun, with different levels of difficulty but it can be very straining for the eyes after a long time, especially if one is playing on a small mobile device because the numbers and the board is so small, even more so for the 20x20 one. I’m not sure how to fix this so I can’t offer any suggestions, I’m sorry. Also, for the special levels, it says that for 500 coins 10 levels will be unlocked. I’ve done this before once and it worked. However, this time when I paid 500 coins, it only unlocked 3 levels in exchange. May I ask why? But anyways, it’s a good game and I’ve enjoyed it so far. Good job.