I like it. The easy level is way too simple and the normal level should be the easy level. But nice game, nice graphics. If I had one other thing to critique could be the red mark when applying a number in pen, it would be more challenging it it didn't show up in red, maybe it doesn't in the harder levels, (i'm going to play them now) but it just made it too easy to guess. With me it was more a typo than not having the wrong number. Great work.

First play I found a bug in this game (calculates solutions wrong). The "controls" aren't good enough forSudoku