The sudoku

The Guardian Killer Sudoku 1

Estanislao Carter: The SuDoku Master Advanced Strategies & Visual Techniques

Puzzles for the Pro Sudoku Expert

The Nastiest Sudoku Book Ever

The Penguin Sudoku Challenge

Wayne Gould: New York Post Fiendish Sudoku: The Official Utterly Addictive Number-Placing Puzzle

Sudoku for the Crazed Sudoku Lover Impossible Sudoku Puzzles

AI Escargot The Most Difficult Sudoku Puzzle

Antoine Alary: Extreme Sudoku: A collection of 200 the toughest Sudoku puzzles known to man. (With their solutions.)

The Second Step Sudoku Medium Puzzle Books Paperback

Puzzle Therapist: The Brain Boosting Sudoku Loco Craze Very Hard Puzzles with 200+ Challenges

Editors of Nikoli Publishing: The Original Sudoku

The Original Sudoku: Bk. 3 Engelska Paperback

Artisanal Sudoku 150 Handcrafted Puzzles That Go Beyond the Ordinary

The Biggest, Bestest Book of Sudoku

The Telegraph Big Book of Sudoku 4 (häftad, eng)

The Way of Samurai: 111 Samurai Sudoku

The Big Book of Sudoku: Volume 2

The Puzzle Society: Pocket Posh Sudoku 9

Will Shortz: Will Shortz Presents the Monster Book of Sudoku for Kids

Sudoku Techniques for the Serious Players

The World's Most Difficult Sudoku Only Play if You're an Expert with 200+ Very Hard Puzzles

Will Shortz: Will Shortz Presents the Little Luxe Book of Sudoku: 335 Easy to Hard Puzzles

Killer Sudoku: More Than 200 of the Most Difficult Puzzles

David J Bodycombe: Sudoku Under the Sun: More Than 380 Puzzles from Penguin Samurai

Gigantic Sudoku 36x36: 100 of the very best giant sudoku puzzles and solutions

The Telegraph All New Sudoku Puzzles 7 (häftad, eng)

The Telegraph All New Sudoku Puzzles 1 (häftad, eng)

The Mail on Sunday: Super Sudoku Volume 3 Paperback

The Super Book of Serious Sudoku Paperback

The Harder They Come Sudoku Difficult Puzzles (240+ Puzzles)

The big book of 16 × 16 Giant Sudoku: 200 16 × 16 Sudoku Puzzles

Sudoku on the Loo

Collins Uk Staff: Killer Sudoku 1: The Deadly New Dimension

Puzzle Therapist: The Mensa Approved Killer Sudoku Large Print Edition (with over 240 Puzzles)

Pr Denis BERTHIER: The Hidden Logic of Sudoku (Second Edition)

Will Shortz Presents the Huge Book of Hard Sudoku: 300 Challenging Puzzles

Michael The Book of Japanese Puzzles: Sudoku, Kakuro, Hanjie

Will Shortz Presents the Little Black Book of Sudoku: 400 Puzzles

The Kids' Book Of Sudoku 1

The Kids' Book of Sudoku 2 av Alastair Chisholm

The Ultimate Brain Health Puzzle Book for Adults: Crosswords, Sudoku, Cryptograms, Word Searches, and More!

The Big Book of Sudoku: Volume 1

Will Shortz Presents the Epic Book of Extreme Sudoku: 300 Challenging Puzzles

Sudoku Coloured

The Telegraph Killer Sudoku 1

The Guardian Sudoku 2

The Guardian Killer Sudoku 1

The Guardian Killer Sudoku 2

52 Things to Do While You Poo: The Sudoku Puzzle Book by Hugh Jassburn

The Biggest, Bestest Book of Sudoku by Nikoli Publishing

The Telegraph Big Book of Sudoku 2 by Telegraph Media Group Ltd

The Telegraph Big Book of Sudoku 3 by Telegraph Media Group Ltd

The Kew Gardens Large Print Sudoku Book by Eric Saunders

The Telegraph Big Book of Sudoku 1 by Telegraph Media Group Ltd

The Turing Tests: Expert Super Sudoku by Eric Saunders

The Telegraph Big Book of Sudoku 4 by Telegraph Media Group Ltd