These are hard difficulty sudoku puzzles that have 2 puzzles per A4 sheet of paper and the solutions on an additional sheet.
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Hard Printable Sudoku Puzzles 2 Per Page – Book 11
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 […]