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    80+ Extreme Hard Challenging Sudoku 16*16 Puzzles: Hard Level for Adults - All 16*16 Hard 80+ Sudoku - Sudoku Puzzle Books - Sudoku Puzzle Books Hard - Large Print Sudoku Puzzle Books For Adults - Sud

    80+ Extreme Hard Challenging Sudoku 16*16 Puzzles: Hard Level for Adults - All 16*16 Hard 80+ Sudoku - Sudoku Puzzle Books - Sudoku Puzzle Books Hard - Large Print Sudoku Puzzle Books For Adults - Sud

    Do you think you re an expert at puzzles? Enjoy the century s most addictive puzzle game. -80 pages.-8.5 x 11 inches-16*16 medium hardGift this to your friend family and teens to have a happy journey time. more

    $7.16

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    Sudoku Puzzle Book Hard 240 Puzzles Volume 4: Sudoku Puzzle Book Difficult - 240 Sudoku Puzzles To Solve - Solutions At The End - Challenging Hard Sudoku (Paperback)

    Sudoku Puzzle Book Hard 240 Puzzles Volume 4: Sudoku Puzzle Book Difficult - 240 Sudoku Puzzles To Solve - Solutions At The End - Challenging Hard Sudoku (Paperback)

    Sudoku Puzzle Book Hard - A 6x9 matte cover 121 Pages of (60x4) Sudoku puzzles with solutions. Difficult Sudoku puzzles. Improve your game skill with irresistible sudoku puzzles. more

    $7.63

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    Hard to Extreme Sudoku Hard to Extreme Sudoku - 300 Challenging Puzzles - Volume 1: Hard Very Hard and Extremely Hard Puzzles for Sudoku Experts Book 1 (Paperback)

    Hard to Extreme Sudoku Hard to Extreme Sudoku - 300 Challenging Puzzles - Volume 1: Hard Very Hard and Extremely Hard Puzzles for Sudoku Experts Book 1 (Paperback)

    Hard to Extreme Sudoku Puzzles Playing Sudoku is addictive and you can never have enough puzzles. When you become a skilled player you may want more challenging puzzles. In this book we have: 100 hard puzzles 100 very hard puzzles and 100 extreme... more

    $8.49 $7.59

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    Sudoku Puzzle Book Easy To Hard 100 Puzzles Vol 7: Perfect Sudoku Book For Teen Easy To Hard Sudoku Challenging And Fun Puzzle (Paperback)

    Sudoku Puzzle Book Easy To Hard 100 Puzzles Vol 7: Perfect Sudoku Book For Teen Easy To Hard Sudoku Challenging And Fun Puzzle (Paperback)

    Sudoku is a fun way to improve growth and development. It promotes logical thinking and deductive reasoning skills decision making a connection between action and result better cognitive development methodical thinking and teaches attention to detail.... more

    $5.99

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    500+ Sudoku Puzzle Book for Adults Easy Medium Hard: Sudoku Variation Big Book of 9x9 Irregular Sudoku Puzzles Challenging suduko Game Book Tons of Challenge and Fun for your Brain (Paperback)

    500+ Sudoku Puzzle Book for Adults Easy Medium Hard: Sudoku Variation Big Book of 9x9 Irregular Sudoku Puzzles Challenging suduko Game Book Tons of Challenge and Fun for your Brain (Paperback)

    500+ SUDOKU Expert difficulty Fun Puzzles to Boost Your Brain Power! Perfect Gift for your kids mom dad senior friends and family What s in this book: Suitable for all levels: beginner to expert LOTS of puzzles:120Easy 160Medium and 240Hard. Expertly... more

    $8.66 $7.68

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    Easy To Hard Sudoku Challenging And Fun Puzzles Volume 1 : Perfect Sudoku Book For Teen Easy To Hard Sudoku Challenging And Fun Puzzle (Paperback)

    Easy To Hard Sudoku Challenging And Fun Puzzles Volume 1 : Perfect Sudoku Book For Teen Easy To Hard Sudoku Challenging And Fun Puzzle (Paperback)

    Sudoku is a fun way to improve growth and development. It promotes logical thinking and deductive reasoning skills decision making a connection between action and result better cognitive development methodical thinking and teaches attention to detail.... more

    $6.94

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    Easy/Medium/Hard Maze & Sudoku Puzzles for Adults: BOOK 1 20 mazes/sudoku/alphabetical sudoku (60 total) difficulty 10-50 easy medium hard difficult mazes solutions for all puzzles activity book for adults teenagers seniors challenging riddles for...

    Easy/Medium/Hard Maze & Sudoku Puzzles for Adults: BOOK 1 20 mazes/sudoku/alphabetical sudoku (60 total) difficulty 10-50 easy medium hard difficult mazes solutions for all puzzles activity book for adults teenagers seniors challenging riddles for...

    Important: this book contains all of: mazes numerical sudoku and alphabetical sudoku with difficulty levels from easy to hard - the best choice for everyone who is not sure which level to choose. If you re interested in other difficulty levels -... more

    $7.36

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    Large Brain Book of Sudoku: Large Print Sudoku Puzzle Book For Smart Adults Seniors & Kids With 120 Hard Sudoku Puzzles (Hard Large Print Sudoku Puzzle Books) Challenge your Brain!: Enjoy Solving 120

    Large Brain Book of Sudoku: Large Print Sudoku Puzzle Book For Smart Adults Seniors & Kids With 120 Hard Sudoku Puzzles (Hard Large Print Sudoku Puzzle Books) Challenge your Brain!: Enjoy Solving 120

    Large Brain Book of Sudoku with 120 Hard Puzzles. Solving Sudoku is a lot of fun and easy to learn yet hard to master. Have fun with these challenging hard level Sudoku puzzles expertly crafted and graded. There are plenty puzzles to enjoy of hard... more

    $12.95

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    Sudoku Puzzle Book Vol 6: Perfect Sudoku Book For Teen Easy To Hard Sudoku Challenging And Fun Puzzle (Paperback)

    Sudoku Puzzle Book Vol 6: Perfect Sudoku Book For Teen Easy To Hard Sudoku Challenging And Fun Puzzle (Paperback)

    Sudoku is a fun way to improve growth and development. It promotes logical thinking and deductive reasoning skills decision making a connection between action and result better cognitive development methodical thinking and teaches attention to detail.... more

    $6.59

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    Sudoku Puzzle Book Vol 7: Perfect Sudoku Book For Teen Easy To Hard Sudoku Challenging And Fun Puzzle (Paperback)

    Sudoku Puzzle Book Vol 7: Perfect Sudoku Book For Teen Easy To Hard Sudoku Challenging And Fun Puzzle (Paperback)

    Sudoku is a fun way to improve growth and development. It promotes logical thinking and deductive reasoning skills decision making a connection between action and result better cognitive development methodical thinking and teaches attention to detail.... more

    $6.59

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    Easy To Hard Sudoku Challenging And Fun Puzzles Volume 2 : Easy Medium Hard Level Sudoku Puzzle Book For Teen (Puzzles & Games for Teen) (Paperback)

    Easy To Hard Sudoku Challenging And Fun Puzzles Volume 2 : Easy Medium Hard Level Sudoku Puzzle Book For Teen (Puzzles & Games for Teen) (Paperback)

    Sudoku is a fun way to improve growth and development. It promotes logical thinking and deductive reasoning skills decision making a connection between action and result better cognitive development methodical thinking and teaches attention to detail.... more

    $9.28 $6.63

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    Killer Sudoku : 600 Sudoku challenging puzzles (easy to hard): Puzzle Book 11.00 x 8.50 (Paperback)

    Killer Sudoku : 600 Sudoku challenging puzzles (easy to hard): Puzzle Book 11.00 x 8.50 (Paperback)

    Killer puzzles use the same grid as Sudoku and require the reader to fill in the numbers 1 to 9 as before. But this time the numbers in the outlined boxes must also all add up to a specific number. Already hugely popular in the national press the... more

    $9.50

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    SUDOKU over 1000 puzzles 6 level challenge: sudoku book for pro 1000+ puzzles easy to very hard 6 levels challenging the most intelligent brains. (Paperback)

    SUDOKU over 1000 puzzles 6 level challenge: sudoku book for pro 1000+ puzzles easy to very hard 6 levels challenging the most intelligent brains. (Paperback)

    the new best sudoku book ever by mr smart: _ Suitable for all levels: beginner to expert _ LOTS of puzzles: 168 from each level 1 to 6. _ Expertly crafted with accurate skill levels _ Bigger print than in most newspapers and magazines _ 168 pages... more

    $7.99

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    Killer Sudoku: Sudoku Book 200 Hard Killer Sudoku Puzzles Ultimate Killer Sudoku Puzzle Books (Paperback)

    Killer Sudoku: Sudoku Book 200 Hard Killer Sudoku Puzzles Ultimate Killer Sudoku Puzzle Books (Paperback)

    This book of 200 Hard Killer Sudoku Puzzles will grab onto your attention and then hold onto it for hours upon hours. Challenging and fun these are brain games that will get you thinking and get you working testing your abilities and demanding that you... more

    $11.96

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    Sudoku Puzzles for Adults : EASY MEDIUM HARD 60 sudoku puzzles difficulty 20-50 difficult sudokus solutions for all puzzles activity book for adults teenagers puzzles brain training (Series #1) (Paperback)

    Sudoku Puzzles for Adults : EASY MEDIUM HARD 60 sudoku puzzles difficulty 20-50 difficult sudokus solutions for all puzzles activity book for adults teenagers puzzles brain training (Series #1) (Paperback)

    This challenging sudoku puzzles activity book for adults provides you with long hours of brain workout which will make you smarter! There are 60 sudoku puzzles in total which are organized into 4 difficulty categories - from the easy ( 20 ) to hard (... more

    $6.74

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    Sudoku with Answers - Over 2000 Puzzles - 6 Difficulty Levels Ranging from Very Easy to Extreme - 4 : Sudoku With Answers: Value Book - More Than 2000 Puzzles - Hard Very Hard and Extreme - Volume 1

    Sudoku with Answers - Over 2000 Puzzles - 6 Difficulty Levels Ranging from Very Easy to Extreme - 4 : Sudoku With Answers: Value Book - More Than 2000 Puzzles - Hard Very Hard and Extreme - Volume 1

    A great mind challenging brain game to improve your memory mental health and wellbeing. More than 2000 puzzles 684 Hard 684 Very Hard and 684 Extreme with accurate skill levels Number of puzzles per page: 6 Solutions at the end Big 8.5 x 11 pages with... more

    $15.99

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    Sudoku with Answers - Over 2000 Puzzles - 6 Difficulty Levels Ranging from Very Easy to Extreme - 4 : Sudoku With Answers: Value Book - More Than 2000 Puzzles - Hard Very Hard and Extreme - Volume 2

    Sudoku with Answers - Over 2000 Puzzles - 6 Difficulty Levels Ranging from Very Easy to Extreme - 4 : Sudoku With Answers: Value Book - More Than 2000 Puzzles - Hard Very Hard and Extreme - Volume 2

    A great mind challenging brain game to improve your memory mental health and wellbeing. More than 2000 puzzles 684 Hard 684 Very Hard and 684 Extreme with accurate skill levels Number of puzzles per page: 6 Solutions at the end Big 8.5 x 11 pages with... more

    $15.99

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    Sudoku Large Print 110 Puzzles From Starter To Insane: One Puzzle Per Page - Starter Easy Medium Hard and Extreme Large Print Sudoku Book For Adults (Puzzles & Games for Adults) (Paperback)

    Sudoku Large Print 110 Puzzles From Starter To Insane: One Puzzle Per Page - Starter Easy Medium Hard and Extreme Large Print Sudoku Book For Adults (Puzzles & Games for Adults) (Paperback)

    Large Print Sudoku: Puzzle Book for Adults - Starter to InsaneLarge Print Sudoku Puzzles are the perfect gift for all brain puzzle and sudoku lovers! Features 110 Sudoku puzzles from beginner to expert that become more challenging as the book... more

    $8.99

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    Enter at Your Own Risk : A Book of VERY Difficult SUDOKU PUZZLES: A book of 300 HARD SUDOKU Puzzles (Paperback)

    Enter at Your Own Risk : A Book of VERY Difficult SUDOKU PUZZLES: A book of 300 HARD SUDOKU Puzzles (Paperback)

    Are you a Sudoku WARRIOR? Well it s time for another Sudoku CHALLENGE. Can you handle it? This collection of 300 hundred challenging puzzles will have you coming back for more!Features: - 300 hard sudoku puzzles- Answers include more

    $7.90

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    Will Shortz Presents The Huge Book of Hard Sudoku : 300 Challenging Puzzles (Edition 1) (Paperback)

    Will Shortz Presents The Huge Book of Hard Sudoku : 300 Challenging Puzzles (Edition 1) (Paperback)

    Three hundred challenging sudoku puzzles for the true sudoku addict! more

    $12.99 $10.99

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    Pre-Owned Will Shortz Presents The Huge Book of Hard Sudoku: 300 Challenging Puzzles Paperback

    Pre-Owned Will Shortz Presents The Huge Book of Hard Sudoku: 300 Challenging Puzzles Paperback

    Our books are pre-loved which means they have been read before. We carefully check all our books and believe them to be in a - USED - VERY GOOD Condition condition. If you re not completely satisfied please get in touch & we ll be happy to help.... more

    $10.25

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    World s Toughest Sudoku Puzzles book : Very challenging Sudoku compilation for the pros . Large print solutions included . (Paperback)

    World s Toughest Sudoku Puzzles book : Very challenging Sudoku compilation for the pros . Large print solutions included . (Paperback)

    Hard Sudoku Puzzles you said ? ... Look no more You have just found the hardest Sudoku Ever so hard even the pro s have hard time solving it. Grab your self a copy and challenge your brain now . more

    $9.29

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    Sudoku Puzzles for Adults Hard : Sudoku Puzzles for Adults Hard Level with Full Solutions Best Activity Game for Smart Experts & Seniors With Solving Techniques (Paperback)

    Sudoku Puzzles for Adults Hard : Sudoku Puzzles for Adults Hard Level with Full Solutions Best Activity Game for Smart Experts & Seniors With Solving Techniques (Paperback)

    A fun and challenging game that can help improve your memory concentration and problem-solving skills. With practice you ll be able to solve even the most difficult Sudoku puzzles with ease! Sudoku for Adults is a book that contains a variety of... more

    $13.99

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    Pro Sudoku : A Book of Ridiculously HARD SUDOKU PUZZLES (Paperback)

    Pro Sudoku : A Book of Ridiculously HARD SUDOKU PUZZLES (Paperback)

    Are you a Sudoku WARRIOR? Well it s time for a NEW Sudoku CHALLENGE. Can you handle it? This collection of 300 hundred challenging puzzles will have you coming back for more!Features: - 300 hard sudoku puzzles- Answers include more

    $7.90

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    Pre-Owned Will Shortz Presents Hard Sudoku Volume 4: 200 Challenging Puzzles Paperback

    Pre-Owned Will Shortz Presents Hard Sudoku Volume 4: 200 Challenging Puzzles Paperback

    Our books are pre-loved which means they have been read before. We carefully check all our books and believe them to be in a - USED - VERY GOOD Condition condition. If you re not completely satisfied please get in touch & we ll be happy to help.... more

    $12.82

    FREE shipping

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    Sudoku for Seniors: Hard sudoku in big print 1 : 200 fun sudoku puzzles (Series #7) (Paperback)

    Sudoku for Seniors: Hard sudoku in big print 1 : 200 fun sudoku puzzles (Series #7) (Paperback)

    Challenging sudoku puzzles stimulate our brains and keep us feeling young! This sudoku book features one (big print) puzzle per page with room for notes and problem solving in a generous 8.5 x 11 format. You ll love the brain teasing struggle of every... more

    $12.99

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    Colorful Sudoku: Cody Greene Hard Sudoku: 100 Puzzles (Large Print) (Paperback)

    Colorful Sudoku: Cody Greene Hard Sudoku: 100 Puzzles (Large Print) (Paperback)

    This is the 3rd in the Colorful Sudoku Puzzle Book Series from a total of 5 books. If you love a good challenging game of Sudoku then you ll love this Sudoku book. Features: 100 Hard Sudoku Puzzles Large puzzle displayed one per page Solutions to... more

    $7.16

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    Sudoku Puzzles For Adults : 160 Puzzles and Solutions (The Challenge) - Volume 1 Hard Level (Paperback)

    Sudoku Puzzles For Adults : 160 Puzzles and Solutions (The Challenge) - Volume 1 Hard Level (Paperback)

    This sudoku book will give your brain a fair and challenging mental workout. Stay sharp and enjoy. Ideal when relaxing or challenging yourself at home and is meant for Sudoku challengers of this brain-bashing game. This puzzle book is not for the truly... more

    $17.36

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    Will Shortz Presents Mad for Sudoku : 200 Challenging Puzzles (Edition 1) (Paperback)

    Will Shortz Presents Mad for Sudoku : 200 Challenging Puzzles (Edition 1) (Paperback)

    Can t get enough sudoku? This book is for you! It contains two hundred challenging to devilishly difficult sudoku puzzles in a portable trim. Includes: -200 hard puzzles -Perfect portable size -Edited by Will Shortz more

    $14.07

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    Dad Book Sudoku Puzzles: Large Print Activity book - Perfect Gift for Fathers Day (Paperback)

    Dad Book Sudoku Puzzles: Large Print Activity book - Perfect Gift for Fathers Day (Paperback)

    Sudoku Book for Your Father! From Easy to Hard Challenging Puzzle games to exercise your brain and keep yourself away from boredom ! Amazing sudoku games! Features: - 40 easy sudoku puzzles - 40 medium sudoku puzzles - 40 hard sudoku puzzles - 5 To do... more

    $7.04

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    The Ultimate Sudoku Puzzle Book (Paperback)

    The Ultimate Sudoku Puzzle Book (Paperback)

    The ultimate sudoku puzzle book for adults with lots of challenging puzzles to keep you occupied for ages. The varied difficulty range makes it great for the whole family to enjoy. This book contains 324 easy puzzles 324 medium puzzles 324 hard puzzles... more

    $13.99 $10.29

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    Exciting Younger Kids Logic Games: Easy to Expert Game Book With Word Jumble and Sudoku Challenge Plus Spot the Words Brain Puzzles for Brilliant Young Homeschoolers (Paperback)(Large Print)

    Exciting Younger Kids Logic Games: Easy to Expert Game Book With Word Jumble and Sudoku Challenge Plus Spot the Words Brain Puzzles for Brilliant Young Homeschoolers (Paperback)(Large Print)

    Puzzle books are an example of learning that doesn t feel like learning.A great collection of Hard and Challenging Puzzles. Build Math Thinkers for STEM mindset with this puzzle book. Get off your computer and phone and give printed puzzles a chance!... more

    $7.01

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    Spooky Sudoku : Hard Volume 2 (Paperback)

    Spooky Sudoku : Hard Volume 2 (Paperback)

    This Halloween themed pocket format book ideal for traveling entertain with hours of challenging and fun puzzles. Sure to offer the puzzle aficionado the sudoku challenge they are looking for. This Sudoku book is suitable for Sudoku fans of all ability... more

    $10.91 $9.92

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    480++ Sudoku : Hard Level for Adults All 9*9 Hard 480++ Sudoku level: 15 - Sudoku Puzzle Books - Sudoku Puzzle Books Hard - Large Print Sudoku Puzzle Books For Adults - Sudoku Advanced (Paperback)

    480++ Sudoku : Hard Level for Adults All 9*9 Hard 480++ Sudoku level: 15 - Sudoku Puzzle Books - Sudoku Puzzle Books Hard - Large Print Sudoku Puzzle Books For Adults - Sudoku Advanced (Paperback)

    Do you think you re an expert at puzzles? Enjoy the century s most addictive puzzle game. 80 pages.8.5 x 0.2 x 11 inches9*9 Medium HardGift this to your friend family and teens to have a happy time with brain exercise. more

    $6.99

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    Big Book of Sudoku - Medium and Hard: Sudoku Activity Book with Over 600 Puzzles for Adults sudoku puzzles for adults large print Medium To Hard Sudoku Puzzles with Solutions Sudoku 600+ Puzzles Me

    Big Book of Sudoku - Medium and Hard: Sudoku Activity Book with Over 600 Puzzles for Adults sudoku puzzles for adults large print Medium To Hard Sudoku Puzzles with Solutions Sudoku 600+ Puzzles Me

    Big Book of Sudoku Solving Sudoku Puzzles is a lot of fun and very easy to learn. Have fun with this Sudoku book! You will find over 600 Puzzles to solve. Book features: 600+ Sudoku Puzzles. Medium and Hard. Including all Solutions. Many hours of fun!... more

    $10.49

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    2020 Extreme Hard Advanced Sudoku 16*16 Puzzles: Hard Level for Adults - All 16*16 Hard 80+ Sudoku - Sudoku Puzzle Books - Sudoku Puzzle Books Hard -

    2020 Extreme Hard Advanced Sudoku 16*16 Puzzles: Hard Level for Adults - All 16*16 Hard 80+ Sudoku - Sudoku Puzzle Books - Sudoku Puzzle Books Hard -

    2020 Extreme Hard Advanced Sudoku 16*16 Puzzles: Hard Level for Adults - All 16*16 Hard 80+ Sudoku - Sudoku Puzzle Books - Sudoku Puzzle Books Hard - more

    $12.00 $10.71

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    Sudoku Book for Kids Ages 4-8 : The Super Sudoku Book For Smart Kids Ages 4-8 Sudoku Puzzle Activity for Kids 4-8 & Older 196 Sudoku Puzzles for Kids with Solutions Perfectly Logical Challenging Puzzle Brain Teasers Sudokus (Paperback)

    Sudoku Book for Kids Ages 4-8 : The Super Sudoku Book For Smart Kids Ages 4-8 Sudoku Puzzle Activity for Kids 4-8 & Older 196 Sudoku Puzzles for Kids with Solutions Perfectly Logical Challenging Puzzle Brain Teasers Sudokus (Paperback)

    This book contains over 196 Sudoku puzzles and difficulties to get you solving puzzles in no time!196 Sudoku puzzles of 9x9 sizesEasy and difficulty levels with solutionDetailed step-by-step instructions written to teach someone who has never even... more

    $6.94

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    The Gigantic Sudoku Puzzle Book. 1500 Puzzles. Easy Through Challenging to Nail Biting and Torturous. Largest Printed Sudoku Puzzle Book Ever. : All the Puzzles Are Guaranteed to Have Only One Solution. All the Sudoku Games Use a 17-Clue Sudoku Grid.

    The Gigantic Sudoku Puzzle Book. 1500 Puzzles. Easy Through Challenging to Nail Biting and Torturous. Largest Printed Sudoku Puzzle Book Ever. : All the Puzzles Are Guaranteed to Have Only One Solution. All the Sudoku Games Use a 17-Clue Sudoku Grid.

    Never before has such a huge collection of Sudoku puzzles been published in a single book. The Gigantic Sudoku Puzzle Book has 1500 sudoku puzzles spread across 6 levels of difficulty. All the puzzles are on a standard 81 square 9X9 grid. The solutions... more

    $14.95

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    My Favourite Person Gave Me This Sudoku Puzzle: Hard Level for Adults - All 16*16 Hard 80+ Sudoku - Sudoku Puzzle Books - Sudoku Puzzle Books Hard - L

    My Favourite Person Gave Me This Sudoku Puzzle: Hard Level for Adults - All 16*16 Hard 80+ Sudoku - Sudoku Puzzle Books - Sudoku Puzzle Books Hard - L

    Do you think you re an expert at puzzles? Enjoy the century s most addictive puzzle game. -80 pages.-8.5 x 11 inches-16*16 medium hardGift this to your friend family and teens to have a happy journey time. more

    $7.83

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    Hard to Expert Sudoku Book Big Book of Sudoku: sudoku puzzle book for adults with solutions Hard To Expert Sudoku sudoku 600 puzzles (Paperback)

    Hard to Expert Sudoku Book Big Book of Sudoku: sudoku puzzle book for adults with solutions Hard To Expert Sudoku sudoku 600 puzzles (Paperback)

    This is a Sudoku Puzzle Book For Adults 600 Puzzles with Solutions Hard To Expert ( Hard Difficult Insane) Simple and Elegant High Quality Cover. more

    $9.99

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