Absolutely Nasty Sudoku Level 3
By (Author) Frank Longo
Union Square & Co.
Sterling
1st March 2007
3rd May 2007
United States
General
Non Fiction
793.74
Paperback
160
Width 152mm, Height 229mm
The difficulty level soars, as even more tricks get added to the mix: X-Wing; Swordfish; XY-Wing; XYZ-Wing; and the Gordonian Rectangle.