Big Book of Killer Su Doku Book 1

Perfect for coffee breaks, commutes or relaxing at home, this bumper collection of 300 brand new killer sudoku puzzles is guaranteed to provide you with hours of entertainment:

• 300 new killer sudoku puzzles
• Contains a mix of 100 easy, 100 medium, 100 hard puzzles
• 9 x 9 grid patterns
• One puzzle per page
• Solutions at the back of the book
• Highly portable paperback
• Great gift idea