I like this Suduku game best of all I have tried. I have played it regularly for more than a year. I only play Insane puzzles. They are just hard enough to give me the sort of challenge Im always looking for in any game. I like the new feature of automatic erase in the other cases when making a fixation of a digit. However if that fixation was wrong you have lost in wich other cases you had put that particular digit. I also think there should be a gap between the two tables of digits you are choosing from, too easy to make a mistake. It would also make more sense to have them presented as two rows, one below the other instead of the table format. I only play this game on IPad.