Will Shortz Presents Killer Sudoku: 200 Hard Puzzles

Watch out! These puzzles are killer! But if you dare, grab a pen and take on these two hundred all-new extra-challenging Sudoku puzzles. Features: 200 hard puzzles Big grids for easy solving Introduction by legendary puzzlemaster Will Shortz

• • Author: Will Shortz
• • Publisher: St. Martin's Griffin
• • Publication Date: Mar 25, 2014
• • Number of Pages: 320 pages
• • Language: English
• • Binding: Paperback
• • ISBN-10: 1250044960
• • ISBN-13: 9781250044969