Will Shortz Presents Survival of the Fittest Sudoku 200 Hard Puzzles, by Shortz, Will
- ISBN: 9781250049278 | 125004927X
- Cover: Paperback
- Copyright: 6/3/2014
Watch out! These Sudoku puzzles are not for the faint of heart! But if you dare, grab a pen and take on these two hundred all-new extra-challenging puzzles.
200 hard puzzles
Big grids for easy solving
Introduction by legendary puzzlemaster Will Shortz