These are hard difficulty sudoku puzzles that have 6 puzzles per A4 sheet of paper and the solutions on an additional sheet.
Hard Printable Sudoku Puzzles 6 Per Page – Book 12
Printable Sudoku Puzzles Hard sudoku puzzles are for the more advanced sudoku player. A limited amount of the numbers will already be placed onto the puzzle consequently making it harder to complete. 06 Hard Sudoku […]