Bored of Sudoku? Try its big brother - kakuro! Kakuro takes the logic of Sudoku a step further, by combining the skills required to complete a numbered grid, with simple maths to ensure that rows and columns add up to a specified amount - think of Kakuro as the mathematical equivalent of crosswords. It's a little bit tougher and a lot more fun that it's predecessor. Already a regular feature in the "Guardian", and flying off the shelves in Japan, Kakuro promises to be the next big puzzle to test the nation. "The Book of ...

The Book of Kakuro 2006, Overlook Press

ISBN-13: 9781585678129

Trade paperback

The Book of Kakuro 2005, Gerald Duckworth & Co Ltd, London

ISBN-13: 9780715635773