Are you tough enough? Take on this collection of 200 difficult sudoku puzzles and find out! Includes: -200 hard puzzles-Perfect portable size-Edited by Will Shortz Also in the series: -Will Shortz Presents Daring Sudoku -Will Shortz Presents Dangerous Sudoku
Will Shortz has been the crossword puzzle editor of The New York Times since 1993. He is also the puzzlemaster on NPR’s Weekend Edition Sunday and is founder and director of the annual American Crossword Puzzle Tournament. He has edited countless books of crossword puzzles, Sudoku, KenKen, and all manner of brain-busters.