These are hard difficulty sudoku puzzles that have 2 puzzles per A4 sheet of paper and the solutions on an additional sheet.
Hard Printable Sudoku Puzzles 2 Per Page – Book 20
Printable Sudoku Puzzles Hard sudoku puzzles are a great way to play sudoku for the veteran player. Download these free hard sudoku puzzles then print and play. 06 Hard Sudoku Puzzles 12 Hard Sudoku Puzzles […]