Killer Sudoku Puzzle Book: Irregular Killer Sudoku Large Print Medium to Hard, 100 Puzzles With SolutionsDo you love solving hard Sudoku puzzles? With an assortment of 30 medium level and 70 hard level irregular killer Sudoku puzzles here's what you'll find inside this book: One irregular killer Sudoku puzzle per page Large print - easy to read Solutions to all the puzzles are in the back of the book Size: 8.5x11 This medium to hard level irregular killer Sudoku puzzle book makes a great gift for yourself or someone who loves Sudoku. Ready to join our other satisfied customers? Then order your copy today!