Are you tough enough? Take on this collection of 200 devilishly difficult sudoku puzzles!Includes:- 200 hard puzzles- Perfect portable size- Big grids for easy solving
- ISBN10 0312382766
- ISBN13 9780312382766
- Publish Date 1 April 2008
- Publish Status Active
- Out of Print 22 June 2011
- Publish Country US
- Imprint Saint Martin's Griffin,U.S.
- Format Paperback (US Tall Rack)
- Pages 320
- Language English