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Will Shortz
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Creative Brain Games Extreme...
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Third-Degree Brown Belt...
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X-Treme Sudoku
Editors of Nikoli Publishing
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Brain Games Mini - Sudoku ...
Publications International Ltd,
Brain Games
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Will Shortz Presents Mind...
Will Shortz (Editor)
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Will Shortz Presents Genius...
Will Shortz
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Sudoku Puzzle Book Extreme...
J B Nakamoto
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Will Shortz Presents...
Will Shortz (Editor)
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Will Shortz Presents Hard...
Will Shortz
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Su Doku for Dummies
Andrew Heron,
Edmund James
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Brown Belt Sudoku(r)
Michael Rios
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Will Shortz Presents Double...
Will Shortz (Editor)
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Super Quad Sudoku Samurai
Djape
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Sudoku X 16x16 - Hard to...
Nick Snels
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USA Today Jumbo Puzzle Book...
Usa Today
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The Big Book of Picross...
Djape
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Will Shortz Presents Extra...
Will Shortz
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The Original Sudoku
Editors of Nikoli Publishing
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Sudoku for Kids 8-12 Year...
Smart Little Owl
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Expert Sudoku
Nikoli Publishing
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Jigsaw Sudoku: 160 very...
Djape
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Will Shortz Presents Hard...
Will Shortz
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My Sudoku Puzzle Book: Medium...
Judge J
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Terrifying Sudoku
Will Shortz
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Double Dip Sudoku
Will Shortz
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