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Difficult Sudoku Puzzles: For Adults (Sudoku for Adults)
Difficult Sudoku Puzzles: For Adults (Sudoku for Adults)
£7.02
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Sudoku Ultra Hard - Next Level Challenge for Real Experts: Over 300 Extremely Difficult Puzzles - Designed for Advanced Players - Solutions Included
Sudoku Ultra Hard - Next Level Challenge for Real Experts: Over 300 Extremely Difficult Puzzles - Designed for Advanced Players - Solutions Included
£11.10
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Sudoku serenity relax and puzzle on! Relax and enjoy with 50 sudoku puzzles: Difficult sudoku puzzles!|6×9 Inches 100 Pages|50 Puzzles...Great Gift For Vacation, Holidays, And Free Time
Sudoku serenity relax and puzzle on! Relax and enjoy with 50 sudoku puzzles: Difficult sudoku puzzles!|6×9 Inches 100 Pages|50 Puzzles...Great Gift For Vacation, Holidays, And Free Time
£5.16
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Sudoku Extremely Hard: A Premium Collection of Extreme-Level Sudoku Puzzles, Sharpen Your Mind with 132+ Difficult Challenges (Sudoku Series)
Sudoku Extremely Hard: A Premium Collection of Extreme-Level Sudoku Puzzles, Sharpen Your Mind with 132+ Difficult Challenges (Sudoku Series)
£7.99
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AI Escargot - The Most Difficult Sudoku Puzzle
AI Escargot - The Most Difficult Sudoku Puzzle
£6.06
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Mensa Killer Sudoku: More than 200 of the most difficult number puzzles
Mensa Killer Sudoku: More than 200 of the most difficult number puzzles
£7.99
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EXCEEDINGLY HARD SUDOKU PUZZLE BOOK: 300 Insane Puzzles That Are More Difficult To Solve Than Einstein's Equations And For People Who Have IQ Above 180
EXCEEDINGLY HARD SUDOKU PUZZLE BOOK: 300 Insane Puzzles That Are More Difficult To Solve Than Einstein's Equations And For People Who Have IQ Above 180
£10.67
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Killer Sudoku: More Than 200 of the Most Difficult Puzzles
Killer Sudoku: More Than 200 of the Most Difficult Puzzles
£12.24
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Extreme Sudoku: 200 Extremely hard Sudoku Puzzles. Solving these puzzles is not hard, it's extremely difficult. Solutions are included. (Extreme Sudoku Puzzle Books)
Extreme Sudoku: 200 Extremely hard Sudoku Puzzles. Solving these puzzles is not hard, it's extremely difficult. Solutions are included. (Extreme Sudoku Puzzle Books)
£6.84
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Difficult Sudoku Book: 200 Difficult Sudoku Puzzles: Volume 1
Difficult Sudoku Book: 200 Difficult Sudoku Puzzles: Volume 1
£7.99
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204 Hard Sudoku: Difficult Puzzles to Challenge Yourself, with Large Font Size for Less Strain on the Eyes and Full Solutions Vol. 3 (Assorted Sudoku Puzzle Books)
204 Hard Sudoku: Difficult Puzzles to Challenge Yourself, with Large Font Size for Less Strain on the Eyes and Full Solutions Vol. 3 (Assorted Sudoku Puzzle Books)
£4.99
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Large Print Sudoku 16x16 - 100 Hard Puzzles: Very Difficult Hexadoku with Solutions - Sudoku Variant Puzzle Book for Adults (Large Print Sudoku Variants)
Large Print Sudoku 16x16 - 100 Hard Puzzles: Very Difficult Hexadoku with Solutions - Sudoku Variant Puzzle Book for Adults (Large Print Sudoku Variants)
£6.35
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Sudoku Puzzles Book, Hard and Extremely Difficult Games for Evil Genius: 100 Puzzles (1 Puzzle per page), Sudoku Books with Two Level, Brain Training Games
Sudoku Puzzles Book, Hard and Extremely Difficult Games for Evil Genius: 100 Puzzles (1 Puzzle per page), Sudoku Books with Two Level, Brain Training Games
£5.24
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Outrageously Evil Sudoku: 100 Deviously Difficult Puzzles (Will Shortz Presents...)
Outrageously Evil Sudoku: 100 Deviously Difficult Puzzles (Will Shortz Presents...)
£5.99
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COMPACT Sudoku Most Difficult: Take with you anywhere! 5" x 8" | 55 puzzles & solutions at the highest Level of Difficulty. | Ideal gift for teens, adults, and seniors. |
COMPACT Sudoku Most Difficult: Take with you anywhere! 5" x 8" | 55 puzzles & solutions at the highest Level of Difficulty. | Ideal gift for teens, adults, and seniors. |
£5.99
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Most Difficult Maths Puzzle: Killer Sudoku 10x10 Puzzles: 8 (Logic Puzzle Games)
Most Difficult Maths Puzzle: Killer Sudoku 10x10 Puzzles: 8 (Logic Puzzle Games)
£8.17
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Grosse Sudoku Puzzles: Difficult to Nightmare - Book 1
Grosse Sudoku Puzzles: Difficult to Nightmare - Book 1
£9.95
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Pocket Sudoku: 140 Puzzles for Adults, Easy to Difficult
Pocket Sudoku: 140 Puzzles for Adults, Easy to Difficult
£8.25
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Large Print Sudoku 12x12 - 100 Hard Puzzles: Vey Difficult Sudoku Variant - Different Style of Sudoku Puzzle Book for Adults (Large Print Sudoku Variants)
Large Print Sudoku 12x12 - 100 Hard Puzzles: Vey Difficult Sudoku Variant - Different Style of Sudoku Puzzle Book for Adults (Large Print Sudoku Variants)
£6.25
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COMPACT Sudoku Difficult: Carry anywhere! | Take some pint size entertainment with you. | 5" x 8" | 55 puzzles & solutions
COMPACT Sudoku Difficult: Carry anywhere! | Take some pint size entertainment with you. | 5" x 8" | 55 puzzles & solutions
£22.00
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Sudoku - EXTREMELY DIFFICULT: 184 extreme Sudoku puzzles | Level: expert | Pocket size puzzle book 5 x 8
Sudoku - EXTREMELY DIFFICULT: 184 extreme Sudoku puzzles | Level: expert | Pocket size puzzle book 5 x 8
£7.41
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Genius-Level Sudoku : Over 300 Super-Difficult Puzzles from the Japanese Masters Who Invented the Game
Genius-Level Sudoku : Over 300 Super-Difficult Puzzles from the Japanese Masters Who Invented the Game
£8.72
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Extreme Sudoku Puzzle Book for Adults: Hard to Extremely Hard | 156 Difficult Puzzles
Extreme Sudoku Puzzle Book for Adults: Hard to Extremely Hard | 156 Difficult Puzzles
£7.99
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Sudoku Black Book: Extreme Edition: 150 Ultra-Difficult Sudoku Puzzles for Experienced Solvers | No Guessing Required | For Those Who Don’t Quit
Sudoku Black Book: Extreme Edition: 150 Ultra-Difficult Sudoku Puzzles for Experienced Solvers | No Guessing Required | For Those Who Don’t Quit
£8.13
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Huge Print Ultimate Sudoku: 100 Extremely Difficult Sudoku Puzzles in Large Print - 2 puzzles per page - 8.5 x 11 inch book: 1 (Extremely Hard Large Print Sudoku)
Huge Print Ultimate Sudoku: 100 Extremely Difficult Sudoku Puzzles in Large Print - 2 puzzles per page - 8.5 x 11 inch book: 1 (Extremely Hard Large Print Sudoku)
£8.99
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SUDOKU Large Print Puzzle Book for Adults: 200 HARD & VERY DIFFICULT Puzzles (Puzzle Books Plus)
SUDOKU Large Print Puzzle Book for Adults: 200 HARD & VERY DIFFICULT Puzzles (Puzzle Books Plus)
£7.99
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Work With Your Head, not....: Sudoku Puzzle Book with Solutions,The Perfect Challenge for All Skill Levels ,Puzzles from easy to difficult: suitable for all skill levels.
Work With Your Head, not....: Sudoku Puzzle Book with Solutions,The Perfect Challenge for All Skill Levels ,Puzzles from easy to difficult: suitable for all skill levels.
£5.21
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Very Difficult Sudoku Puzzles For Adults: Hard Sudoku Puzzle Book. 180 Sudoku puzzles from Hard To Extreme Difficulty. Solutions Included: 2 (Hard Sudoku For Adults)
Very Difficult Sudoku Puzzles For Adults: Hard Sudoku Puzzle Book. 180 Sudoku puzzles from Hard To Extreme Difficulty. Solutions Included: 2 (Hard Sudoku For Adults)
£6.69
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Hard Sudoku Puzzle Book for Adults - 200 Challenging Puzzles: Very Difficult Sudokus for Advanced Players - Large Print without Answers
Hard Sudoku Puzzle Book for Adults - 200 Challenging Puzzles: Very Difficult Sudokus for Advanced Players - Large Print without Answers
£8.08
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Happy Father's Day - Sudoku: 4 Difficulty Levels: easy - medium - difficult - extreme | Father's Day gift idea | Pocket sized book | 184 logic puzzles | Mental Fitness
Happy Father's Day - Sudoku: 4 Difficulty Levels: easy - medium - difficult - extreme | Father's Day gift idea | Pocket sized book | 184 logic puzzles | Mental Fitness
£6.57
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Will Shortz Presents The Dangerous Book of Sudoku: 100 Devilishly Difficult Puzzles
Will Shortz Presents The Dangerous Book of Sudoku: 100 Devilishly Difficult Puzzles
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Sudoku Extremely Hard: Very Hard Sudoku Puzzle Book | Compact & travel-friendly: only 5 x 8 inches in size | 184 Extremely Difficult Puzzles With Solutions | Pocket Sudoku Book For Adults
Sudoku Extremely Hard: Very Hard Sudoku Puzzle Book | Compact & travel-friendly: only 5 x 8 inches in size | 184 Extremely Difficult Puzzles With Solutions | Pocket Sudoku Book For Adults
£7.41
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Grosse Sudoku Puzzles: Difficult to Nightmare - Book 2
Grosse Sudoku Puzzles: Difficult to Nightmare - Book 2
£9.95
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Hard Sudoku Book for Adults: 400 Difficult Sudokus for Adults (Vol. 1)
Hard Sudoku Book for Adults: 400 Difficult Sudokus for Adults (Vol. 1)
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Samurai Sudoku Puzzle Book for Adults - Hard: 500 Difficult Sudoku Puzzles Overlapping into 100 Samurai Style
Samurai Sudoku Puzzle Book for Adults - Hard: 500 Difficult Sudoku Puzzles Overlapping into 100 Samurai Style
£5.95
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Impossible Sudoku: 200 ridiculously difficult puzzles
Impossible Sudoku: 200 ridiculously difficult puzzles
£7.99
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Hard Sudoku Book for Adults Vol. 1: 1000+ Difficult Puzzles to Kickstart Your Mental Workout
Hard Sudoku Book for Adults Vol. 1: 1000+ Difficult Puzzles to Kickstart Your Mental Workout
£7.42
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Hard Samurai Sudoku Puzzle Book Large Print: Difficult Sudoku Puzzle Book with 210 Samurai Style Puzzles for Adults
Hard Samurai Sudoku Puzzle Book Large Print: Difficult Sudoku Puzzle Book with 210 Samurai Style Puzzles for Adults
£10.99
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Hard to Extreme Sudoku Puzzles - Volume 2: Over 350 Very Difficult Brain Challenges for Adults with Complete Solutions (L R PUZZLES)
Hard to Extreme Sudoku Puzzles - Volume 2: Over 350 Very Difficult Brain Challenges for Adults with Complete Solutions (L R PUZZLES)
£8.99
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Sudoku Hard: A Premium Collection of 220 Hard-Level Sudoku Puzzles, Sharpen Your Mind with 220 Difficult Challenges (Sudoku Series)
Sudoku Hard: A Premium Collection of 220 Hard-Level Sudoku Puzzles, Sharpen Your Mind with 220 Difficult Challenges (Sudoku Series)
£7.99
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