Big Book of Ultimate Killer Su Doku Book 1: A Bumper Sudoku Gift for Adults

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 nightstand.

When you purchase one of Richardson Publishing Group’s puzzle books you make great things happen - at least 50% of our profits for to charitable projects around the world.

Our puzzles are created by the best authors and setters, so you can be assured you are purchasing a book containing the highest quality content.

We believe in the value of producing beautiful physical books and think carefully about their design and the materials we use.

We are also committed to only working with ethical and responsible suppliers and supporting the environment - we print all our books in the UK using paper from FSC sources.