Hoshiko, Masaki books & textbook
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)
Independently published /2019-04-18 Paperback / 304 Pages
isbn-10: 109509484X / isbn-13: 9781095094846
Extremely Hard Sudoku (Japanese Art Edition 2): 75 Large Print Font Puzzles Book For Adults Who Thinks That They Are Sudoku Masters (One Puzzle Per Page)
Independently published /2019-03-04 Paperback / 154 Pages
isbn-10: 1798698358 / isbn-13: 9781798698358
Extreme Sudoku Collection: The Hardest Sudoku Collection Ever Made With Diabolical Puzzles Not Suitable For Beginners (Test Your Sudoku Solving Skills With The Rest Of The World)
Independently published /2019-04-18 Paperback / 304 Pages
isbn-10: 1095091255 / isbn-13: 9781095091258
Extremely Hard Sudoku: 75 Large Print Font Puzzles Book For Adults Who Wants A Crazy Challenge (One Puzzle Per Page)
Independently published /2019-03-04 Paperback / 154 Pages
isbn-10: 1794599614 / isbn-13: 9781794599611
SUICIDAL SUDOKU PUZZLE BOOK: 300 Hard Puzzles That Will Either Tempt You To Cheat Or Find The Suicide Forest In Japan And Perform Harakiri
Independently published /2019-03-27 Paperback / 304 Pages
isbn-10: 1091713448 / isbn-13: 9781091713444
The Sudoku College Book: Improve Your Logical Thinking And Perform Better In School With Advanced Hard Sudoku Puzzles Made For College Students
Independently published /2019-04-18 Paperback / 304 Pages
isbn-10: 1095082175 / isbn-13: 9781095082171
The Aboslute Fun Sudoku Book #5: Greatest Sudoku Collection With 100 Easy to Medium Sudoku Puzzles To Challenge Your Brains (Large Print)
Independently published /2019-05-07 Paperback / 204 Pages
isbn-10: 1097255387 / isbn-13: 9781097255382
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
Independently published /2019-04-17 Paperback / 304 Pages
isbn-10: 1094932353 / isbn-13: 9781094932354
Sudoku Puzzle Champion: The Ultimate Book Of Hard Sudoku Problems From A Former Sudoku Champion (Suitable For Advanced Solvers Only)
Independently published /2019-04-18 Paperback / 304 Pages
isbn-10: 1095077546 / isbn-13: 9781095077542
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
Independently published /2019-03-27 Paperback / 304 Pages
isbn-10: 1091720118 / isbn-13: 9781091720114
