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New Release
Hard Sudoku : Paperback

The hard sudoku puzzles in this book use the numbers 1 – 9. There is adequate space on each page for filling in the puzzles. Great travel puzzle books for adults!

  • 9×9
  • 400 Puzzles
  • 6″ x 9″ Travel size
  • Difficulty level: Hard
  • Solutions in the back

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