Take on this collection of 200 devilishly difficult sudoku puzzles and find out!Includes: -200 hard puzzles-Perfect portable size-Edited by Will Shortz Also in the series: 'Will Shortz Presents Tough Sudoku''Will Shortz Presents Treacherous Sudoku'
- ISBN10 0312607911
- ISBN13 9780312607913
- Publish Date 19 January 2010
- Publish Status Active
- Out of Print 16 October 2012
- Publish Country US
- Imprint Saint Martin's Griffin,U.S.
- Format Paperback (US Tall Rack)
- Pages 320
- Language English