You've sharpened your skills and now you're ready for more of a challenge.Includes:- 200 medium-level puzzles- Travel-size trim- Introduction by Will Shortz
- ISBN10 0312557574
- ISBN13 9780312557577
- Publish Date 14 October 2008
- Publish Status Active
- Out of Print 23 December 2022
- Publish Country US
- Imprint Saint Martin's Griffin,U.S.
- Format Paperback (US Tall Rack)
- Pages 320
- Language English