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 24
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 […]