X-Treme Sudoku
Editors of Nikoli Publishing
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New York Post Difficult Su...
Wayne Gould
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Devious Sudoku: 200 Very Hard...
Will Shortz (Introduction by)
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Will Shortz Presents Let's...
Will Shortz (Editor)
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Jigsaw Sudoku 9x9 - Hard -...
Nick Snels
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Sudoku X 16x16 - Hard to...
Nick Snels
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The Times Killer Su Doku Book...
The Times Mind Games
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Pocket Posh Sukendo 5: 100...
The Puzzle Society
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Sudoku Variants
Conceptis Puzzles
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Will Shortz Presents Stay...
Will Shortz (Editor)
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The Times Codeword 13: 200...
The Times Mind Games
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The Everything 15-Minute...
Charles Timmerman
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More Original Sudoku
Editors of Nikoli Publishing
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The Beginning Book of Sudoku:...
Brain Jogging Puzzles
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Number Place: Yellow:...
Tetsuya Nishio
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Will Shortz Presents Hard...
Will Shortz
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Sudoku Solving Techniques
Sam Aaron
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Will Shortz Presents Deadly...
Will Shortz (Editor)
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Samurai Sudoku: 500 Medium to...
Khalid Alzamili
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David Karn Sudoku - Medium to...
David Karn
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Little Moments of Joy Adult...
J K Timmet
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Will Shortz Presents Genius...
Will Shortz
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Large Print Sudoku
Richard Manchester
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Let's Play Sudoku: Middle of...
Will Shortz
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Happy Birthday Sudoku: 600...
Cute Huur
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