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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
