In this App, you can test your Sudoku solving skills on Sudokus X, where the two diagonals must also contain the values 1 up to 9.Pick from 5 different difficulty levels. It is even possible to request Extreme Sudokus with extra few starting values or an extra difficult grid. These Sudokus will be some of the toughest you can get!The App does not bother you with a full screen Ad whenever you finish a Sudoku or want to go to a different menu. We know most Sudoku Apps do use these ads, so we are hoping you appreciate this! (If you do want to support us, there is a button in the settings menu that will make you watch an Ad)The App contains multiple tools to help you solving the Sudokus. All of these can be tweaked to your personal preferences in the settings menu.For example, you can:- Use multiple colours for the note values- Automatically remove notes that are no longer possible- Highlight impossible values you enter. E.g. two times the same value in one row- Fill empty cells with note values of the remaining possibilities in that cell- Play full screen (no status bar)- Enter your own Sudokus and solve them in the AppMake sure to check out our other Sudoku Apps as well!