These hard sudoku puzzles a great way to play sudoku for the more seasoned player. A limited amount of numbers are already filled, so these sudoku puzzles will be mush more difficult to complete.

Hard Printable Sudoku Puzzles 2 Per Page – Book 4
Printable Sudoku Puzzles Download these free hard sudoku puzzles to help you get a good grip on the game. More advanced solving techniques will be needed to complete these puzzles. 06 Hard Sudoku Puzzles 12 […]