These are hard difficulty sudoku puzzles that have 2 puzzles per A4 sheet of paper and the solutions on an additional sheet.
Hard Difficulty Sudoku Puzzles
Hard Printable Sudoku Puzzles 2 Per Page – Book 2
Printable Sudoku Puzzles Hard sudoku puzzles are much more difficult and are suggested for experienced sudoku players. These sudoku puzzles will have less figures already entered. 06 Hard Sudoku Puzzles 12 Hard Sudoku Puzzles 18 […]
