Paused a puzzle more than 50 times

Quit a puzzle more than 50 times

Used the delete function more than 100 times

Read all game guides

Total play time exceeded 24 hours

Used the redo function more than 100 times

Used the undo function more than 100 times

Cleared 10 "Sudoku" puzzles

Cleared 20 "Sudoku" puzzles

Cleared 30 "Sudoku" puzzles

Cleared 40 "Sudoku" puzzles

Cleared all "Sudoku" puzzles

Cleared 15 puzzles in a row on shuffle