Can't get enough sudoku? Here's a challenging collection for more skilled sudoku solvers.Features:-200 hard sudoku puzzles-Perfect portable size-Edited by ledendary puzzlemaster Will Shortz
- ISBN10 0312588399
- ISBN13 9780312588397
- Publish Date 29 March 2011
- Publish Status Out of Print
- Out of Print 10 January 2013
- Publish Country US
- Imprint Saint Martin's Griffin,U.S.
- Format Paperback (US Tall Rack)
- Pages 320
- Language English