by Frank Longo (Author)
The vast majority of sudoku puzzles that are labeled "hard," "expert," "challenger," are not really all that difficult. And in a surprising number of cases, they are downright easy. In the "Absolutely Nasty Sudoku" books, you will find puzzles truly worthy of the label "hard." The puzzles increase in difficulty throughout the four books in the series. It ranges from basic and intermediate puzzles and techniques at Level No. 1, to the most advanced techniques at Level No. 4, along with puzzles that require multiple advanced techniques each time.
Format: Illustrated
Pages: 160
Edition: Spi
Publisher: Puzzlewright
Published: 01 Mar 2007
ISBN 10: 140274398X
ISBN 13: 9781402743986