Complete a single card of Sudoku
Complete 10 cards of Sudoku
Complete 50 cards of Sudoku
Complete 1000 Cards of Sudoku
Complete 100 Cards of Sudoku
Complete a single card of Sudoku in under 3 minutes
Complete a single card of Sudoku in under 5 minutes
Play Sudoku for a total of 1 hour
Complete a single card of Sudoku in under 10 minutes
Play Sudoku for a total of 6 hours
Play Sudoku for a total of 24 hours
Play Sudoku for a total of 100 hours