Will Shortz Presents Treacherous Sudoku : Harder Puzzles

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

“A puzzling global phenomenon” —The Economist

“The biggest craze to hit The Times since the first crossword puzzle was published in 1935.” —The Times of London

“England's most addictive newspaper puzzle.” —New York magazine

“The latest craze in games” —BBC News

“Sudoku is dangerous stuff. Forget work and family—think papers hurled across the room and industrial-sized blobs of correction fluid. I love it!” —The Times of London

“Sudokus are to the first decade of the 21st century what Rubik's Cube was to the 1970s.” —The Daily Telegraph

“Britain has a new addiction. Hunched over newspapers on crowded subway trains, sneaking secret peeks in the office, a puzzle-crazy nation is trying to slot numbers into small checkerboard grids.” —Associated Press

“Forget crosswords.” —The Christian Science Monitor