40x40 Enormous Sudoku

Place each number from 1 - 40 exactly once in each row, column and bold-lined 5x8 box. All puzzles are carefully selected to be solvable without requiring pencilmarks, since writing options from 1 - 40 in a square is hardly practical. You'll never need to guess when solving these puzzles, and they each have a unique solution. Can you solve them all?

Full solutions are listed towards the back of the book so if you get stuck along the way- take a peek there

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

For other puzzle books and gift ideas, visit www.puzzle-book.co.uk