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Mensa Guide to Solving Sudoku Hundreds of Puzzles Plus Techniques to Help You Crack Them All
by Gordon, Peter, Longo, Frank
ISBN: 9781402740114
List Price: $17.95
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Sudoku Code 200 Sudoku Puzzles. One Answer. Can You Find It?
by Heaney, Francis, Longo, Frank
ISBN: 9781402740091
List Price: $6.95
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Beyond Black Belt Sudoku: If you have to ask, it's too hard for you.
by Longo, Frank
ISBN: 9781402780707
List Price: $7.95
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New York Times on the Web Crosswords for Teens
by Longo, Frank J., Shortz, Wi...
ISBN: 9780312289119
List Price: $6.95
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USA TODAY Sit & Solve Easy Sudoku (Sit & Solve Series)
by Longo, Frank
ISBN: 9781402775130
List Price: $5.95