These are hard difficulty sudoku puzzles that have 6 puzzles per A4 sheet of paper and the solutions on an additional sheet.
Hard Difficulty Sudoku Puzzles
Hard Printable Sudoku Puzzles 6 Per Page – Book 2
Printable Sudoku Puzzles Hard sudoku puzzles are a great deal more difficult and are recommended for veteran sudoku players. These sudoku puzzles will have less figures already entered. 06 Hard Sudoku Puzzles 12 Hard Sudoku […]
