Solve 500 times a VERY HARD Sudoku
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Solve 5 times an EASY Sudoku
Solve 250 times a VERY HARD Sudoku
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Solve 5 times a MEDIUM Sudoku
Solve 25 times a MEDIUM Sudoku
Solve 250 times a MEDIUM Sudoku
Solve 100 times a MEDIUM Sudoku
Solve 500 times a MEDIUM Sudoku
Solve 5 times a HARD Sudoku
Solve 100 times a HARD Sudoku
Solve 25 times a HARD Sudoku
Solve 250 times a HARD Sudoku
Solve 500 times a HARD Sudoku