Masaki Hoshiko

The Hardest Sudokos In Existence: The Sudoku Puzzle Book For The Most Experienced Players (Ranked As The Hardest Sudoku Collection Available In The Western World)

Masaki Hoshiko

$13.24

F*cking Hard Sudoku Puzzle Book #1: The 300 Worst Sudoku Puzzles in History That Will Destroy Your Life And Brain Cells Just At The First Puzzle

Masaki Hoshiko

$15.18

Mastering Hard Sudoku Puzzles: How To Transform You Brain Into A Sudoku Breaking Machine By Solving Sudoku Puzzles In This Book (That Won'T Take You More Than 10 Minutes A Day)

Masaki Hoshiko

$15.18

Supremely Hard Sudoku Puzzle Book: How Hard Sudoku Puzzles Can Help You Live a Better Life By Exercising Your Brain With Our 300 Extreme Puzzles

Masaki Hoshiko

$15.18

WICKEDLY HARD SUDOKU PUZZLE BOOK: How Difficult Sudoku Puzzles Can Make You Sick And The Only Cure Was To Solve All 300 Of Them

Masaki Hoshiko

$15.18

Extra Hard Sudoku Puzzle Book: The 300 Worst Sudoku Puzzles in History That Will Destroy Your Life And Brain Cells Just At The First Puzzle

Masaki Hoshiko

$15.18

Sudoku Puzzle Champion: The Ultimate Book Of Hard Sudoku Problems From A Former Sudoku Champion (Suitable For Advanced Solvers Only)

Masaki Hoshiko

$13.24

The Hardest Sudokos Ever Made: Irrestitably Hard Advanced Sudoku Puzzles For Experienced Players Looking For A Real Challenge

Masaki Hoshiko

$13.24

UNBELIEVABLY HARD SUDOKU PUZZLE BOOK: 300 Totally Absurd Puzzles For The Mentally Strong And Not The Weak Who Ends Up Tearing Up The Pages

Masaki Hoshiko

$11.39 - $14.24

F*cking Hard Sudoku Puzzle Book #17: The 300 Worst Sudoku Puzzles in History That Will Destroy Your Life And Brain Cells Just At The First Puzzle

Masaki Hoshiko

$15.18

F*cking Hard Sudoku Puzzle Book #7: The 300 Worst Sudoku Puzzles in History That Will Destroy Your Life And Brain Cells Just At The First Puzzle

Masaki Hoshiko

$15.33

Awfully Hard Sudoku Puzzle Book: 300 Challenging Puzzles That Are So Disgustingly Difficult That Makes You Regret Getting This Book

Masaki Hoshiko

$15.18

F*cking Hard Sudoku Puzzle Book #11: The 300 Worst Sudoku Puzzles in History That Will Destroy Your Life And Brain Cells Just At The First Puzzle

Masaki Hoshiko

$15.18

The Forbidden Book Of Sudokus: 300 Hard To Solve Sudoku Puzzles Made By The Japanese Girl Who Used To Create Sudoku Puzzles For Big Magazines

Masaki Hoshiko

$15.18

The Art Of Hard Sudokus: The Most Advanced Sudoku Puzzle Book On The Market (Power Up Your Analytical Thinking And Logic With These 300 Challenging Puzzles)

Masaki Hoshiko

$15.33

Sudoku Book For All: Improve Your Sudoku Game With This Huge Collection Of Sudoku Puzzles Ranked From Hard To Extreme (Not Suitable For All Players)

Masaki Hoshiko

$15.18

Sudoku Puzzle Book - Hard Edition: The Sudoku Challenge Collection That Will Keep You Busy For A Year (Find Out Why Japanese People Love And Adore This Simple Logical Challenge)

Masaki Hoshiko

$15.33

Hard Tests For Your Brain: 300 Sudoku Puzzles In A Single Book That Will Help You Kill Time And Enjoy Your Evenings (Becoming The Master Sudoku Solver)

Masaki Hoshiko

$15.18

The Year Of Sudokus: The Best Sudoku Book Of 2019 - With 300 Sudoku Puzzles Going From Easy To Hard (Keep You Mind Engaged Every Day)

Masaki Hoshiko

$15.18

F*cking Hard Sudoku Puzzle Book #13: The 300 Worst Sudoku Puzzles in History That Will Destroy Your Life And Brain Cells Just At The First Puzzle

Masaki Hoshiko

$15.18

Dreadfully Hard Sudoku Puzzle Book: Will Hard Sudoku Puzzles Ever Rule The World By Sucking Everyone's Brain Cells Dry (300 Puzzles and solutions)

Masaki Hoshiko

$15.18

The Sudoku Secrets: Discover The Japanese Art Of Sudoku Puzzles And Start Solving Advanced Numerical Problems To Improve Your Cognitive Abilities (300 Hard Sudoku Puzzles)

Masaki Hoshiko

$15.18

The Sudoku Book For Hard Thinkers: Solve Advanced Sudoku Puzzles To Improve Your Cognitive Brain Functions And Memory (Suitable For Teenagers, Adults And Seniors)

Masaki Hoshiko

$15.18

Unlocking Hard Soduku Puzzles: 300 Sudoku Puzzles That Will Transform You Into A World Class Sudoku Puzzle Master (Get Ready To Solve Diabolically Hard Puzzles)

Masaki Hoshiko

$13.24

F*cking Hard Sudoku Puzzle Book #23: The 300 Worst Sudoku Puzzles in History That Will Destroy Your Life And Brain Cells Just At The First Puzzle

Masaki Hoshiko

$15.18

Senior Sudoku Book: 300 Hard Sudoku Puzzles For Seniors In A Single Book (Fight Dementia And Alzheimer With Daily Sudoku Challenges)

Masaki Hoshiko

$15.33

The Master Of Numbers And Grids: Develop Your Strategies And Master The Hardest Sudoku Puzzles Ever Assembled In A Pocket Size Book (300 Crazy Challenges)

Masaki Hoshiko

$15.18

The Diabolical Sudoku Book: The Collection Of Hardest Sudoku Puzzles Ever Assembled - 300 Challenges For Advanced Thinkers With Diabolically Hard Problems

Masaki Hoshiko

$13.24

Japanese Sudoku Puzzle Collection: Extremely Hard Sudoku Challenges In Travel Size Book You Can Easily Pack Wherever You Go (Perfect For Active People That Are Always On The Go)

Masaki Hoshiko

$15.18

Crazily Hard Sudoku Puzzle Book: 300 Hard To Impossible Puzzles That Will Make You Pull Your Hair And Swear Not To Play Sudoku For The Rest Of Your Life Again

Masaki Hoshiko

$14.24