Sudoku in 2006

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

Extreme Sudoku: Over 300 Super-Challenging Puzzles with Tips & Tricks by Vorderman, Carol

The Times Su Doku Book 5 by Gould, Wayne

The Times Japanese Logic Puzzles: Hitori, hashi, slitherlink and mosaic by

Will Shortz Presents the Monster Book of Sudoku: 300 Wordless Crossword Puzzles by

Will Shortz Presents The Super-Colossal Book of Sudoku by Shortz, Will

Sudoku: 215 Puzzles from Beginner to Expert by Danesi, Marcel

Will Shortz Presents Sudoku for Stress Relief: 100 Wordless Crossword Puzzles by

Will Shortz Presents Sudoku for Your Bedside: 100 Wordless Crossword Puzzles by

Will Shortz Presents Simple Sudoku: 100 Wordless Crossword Puzzles; Volume 1 by

More Original Sudoku by Editors of Nikoli Publishing

The Essential Book of Japanese Puzzles and How to Solve Them by Moore, Gareth

Su Doku Demystified: The "How to" Book to Understand and Solve Su Doku puzzles by Dresnick M. D., Stephen J.

The Times Hashi by

Will Shortz Presents Sudoku for the Weekend by Shortz, Will

Will Shortz Presents the Big Book of Easy Sudoku: 300 Wordless Crossword Puzzles by

Will Shortz Presents Easiest Sudoku by Shortz, Will

New York Post Easy Su Doku: The Official Utterly Addictive Number-Placing Puzzle by Gould, Wayne

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

New York Post Difficult Su Doku: The Official Utterly Adictive Number-Placing Puzzle by Gould, Wayne

Sudoku Variants by Conceptis Puzzles

The Times Su Doku Book 6: 150 challenging puzzles from The Times by The Times Mind Games

Will Shortz Presents Sudoku for a Sunday Morning: 100 Wordless Crossword Puzzles by

Will Shortz Presents Fitness for the Mind Sudoku: 100 Wordless Crossword Puzzles by

Sudoku Master Class: Sudoku Master Class: 144 Devilish Puzzles with Advanced Strategies by Sheldon, Tom

Will Shortz Presents Sudoku for a Lazy Afternoon by Shortz, Will

New York Post Cubicle Sudoku: The Official Utterly Addictive Number-Placing Puzzle by Gould, Wayne

The Essential Book of Hanjie: And How to Solve It by Moore, Gareth

New York Post Bathroom Sudoku: The Official Utterly Addictive Number-Placing Puzzle by Gould, Wayne

Will Shortz Presents The Giant Gift Book of Sudoku by Shortz, Will

Sudoku: Medium to Hard by Pitkow, Xaq

New York Post Fat-Free Su Doku: The Official Utterly Addictive Number-Placing Puzzle by Gould, Wayne

X-Treme Sudoku by Editors of Nikoli Publishing

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

Big Book of 620 Sudoku Puzzles for the Frustrated Fanatic by Kirk, Cheryl L.