Sudoku is so fun it's scary Features:
Only the bravest sudoku solvers should dare to dive into Will Shortz Presents The Little Orange Book of Harrowing Sudoku. Edited by puzzlemaster Will Shortz, the 335 devilishly diffiucult puzzles in this spooky spiral bound edition is sure to keep you up at night
* 335 sudoku puzzles, arranged according to difficulty
* Sleek design with a covered spiral binding...