200 Moderately Difficult Sudoku Puzzles200 Moderately Difficult Sudoku Puzzles Part of the Sudoku series: Relax with 200 Easy to Difficult Sudoku Puzzles200 Challenging Sudoku Puzzles200 Easy Sudoku Puzzles200 Difficult Sudoku Puzzles200 Very Difficult Sudoku Puzzles200 Random Difficulty Sudoku Puzzles200 Moderately Difficult Sudoku PuzzlesEditions:Paperback: $ 6.95ISBN: 978-1533283559Pages: 88Tags: Richard Lowe's Books