The Will Shortz Presents the Puzzle Doctor : Sudoku Fever
Subtitle: 150 Easy to Hard Sudoku Puzzles
Publisher: St. Martin's Griffin
Published: Apr 27, 2010
Format: paperback
Number of pages: 240
ISBN-13: 9780312641122
Notes: Source title: The Will Shortz Presents the Puzzle Doctor: Sudoku Fever: 150 Easy to Hard Sudoku Puzzles