Boot up the game. Such an accomplishment!
Solve your first Beginner puzzle.
Finish 10 Beginner puzzles.
Finish a Beginner puzzle in less than 90 seconds.
Solve your first Easy puzzle.
Finish 10 Easy puzzles.
Finish an Easy puzzle in less than nine minutes.
Solve your first Normal puzzle.
Finish 5 Normal puzzles.
Finish a Normal puzzle in less than twenty minutes.
Solve your first Hard puzzle.
Finish 5 Hard puzzles.
Finish a Hard puzzle in less than thirty minutes.
Solve your first Master puzzle.
Finish 3 Master puzzles.
Finish a Master puzzle in less than fourty-five minutes.
Solve an Impossible puzzle. I'm impressed!
Finish a second Impossible puzzle. Are you ok? Do you enjoy painful experiences?
Finish an Impossible puzzle in less than a day. There is nothing left for you to learn, go out and Sudokube to the extreme!