W ill Shortz Presents Treacherous Sudoku Harder Puzzles - Will Shortz Presents... Author:Will Shortz This book is for savvy sudoku solvers who are looking for puzzles that are harder than hard Features:
· 200 fearsome puzzles
· Edited by legendary New York Times crossword editor Will Shortz
· Portable and affordable package Also in the series: -Will Shortz Presents Tough Sudoku -Will Shortz Presents Terrifying Sudoku