Are you tough enough?
Take on this collection of 200 difficult sudoku puzzles and find out!Includes:
-200 hard puzzles
-Perfect portable size
-Edited by Will ShortzAlso in the series:
-Will Shortz Presents Daring Sudoku
-Will Shortz Presents Dangerous Sudoku
- ISBN13 9780312640286
- Publish Date 19 July 2011
- Publish Status Out of Print
- Out of Print 19 January 2017
- Publish Country US
- Imprint Saint Martin's Griffin,U.S.
- Format Paperback
- Pages 320
- Language English