Big Book of Ultimate Killer Su Doku Book 1 : a bumper deadly killer sudoku book for adults containing 300 puzzles

A massive 300 deadly killer sudoku puzzles packaged in a stylish paperback - this is the perfect gift book for the avid killer sudoku fan. The 9 x 9 sudoku grids are each arranged on their own page and solutions are easily found at the back of the book. Printed in a highly portable format, the book can be taken on your travels or sit neatly on your bedside table.