55th Birthday Sudoku

Here are the rules of 9 x 9 sudoku:

- Place each number from 1 - 9 exactly once in each row, column and 3x3 bold-lined box and the 2 grey 5's.

All of our books are printed on very high quality paper, making the puzzle experience all the more enjoyable

For other puzzle books, visit our www.puzzle-book.co.uk page.