 Sudoku: Medium to Hard Author: Zachary Pitkow Manufacturer: Chronicle Books ListPrice: $6.95 Offer: $6.95
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 Will Shortz Presents Ferocious Sudoku: 200 Hard Puzzles Author: Will Shortz Manufacturer: St. Martin's Griffin ListPrice: $6.95 Offer: $6.95
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 Sudoku Easy to Hard Presented by Will Shortz, Volume 2: 100 Wordless Crossword Puzzles (Sudoku Easy to Hard) Author: Will Shortz Manufacturer: St. Martin's Griffin ListPrice: $6.95 Offer: $6.95
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 New York Post Fiendish Sudoku: The Official Utterly Addictive Number-Placing Puzzle Author: Wayne Gould Manufacturer: Collins ListPrice: $6.95 Offer: $6.95
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 The Mammoth Book of Sudoku: 400 New Puzzles - The Biggest and Best Collection of Sudoku Ever Author: Nathan Haselbauer Manufacturer: Running Press ListPrice: $13.95 Offer: $11.16
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 Mensa Absolutely Nasty Sudoku Level 4 (Mensa) Author: Frank Longo Manufacturer: Sterling ListPrice: $6.95 Offer: $6.95
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 Sudoku Genius: 144 of the Most Fiendish Puzzles Ever Devised Author: Tom Sheldon Manufacturer: Plume ListPrice: $8.00 Offer: $8.00
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 Killer Sudoku 1: The Deadly New Dimension Author: Collins Uk Staff Manufacturer: Collins ListPrice: $7.95 Offer: $7.95
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 100 Samurai Sudoku Puzzles Author: Peter Greene Manufacturer: Greene Hill Publishing Limited ListPrice: $9.99 Offer: $9.99
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 200 Difficult Sudoku Puzzles Author: Peter Greene Manufacturer: Greene Hill Publishing Limited ListPrice: $9.99 Offer: $9.99
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 Impossible Su Doku Author: BradyGames Manufacturer: BRADY GAMES ListPrice: $9.99 Offer: $9.99
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 Sudoku: More than 200 Fun and Challenging Japanese Number Puzzles Author: Tammy Seto Manufacturer: Gramercy ListPrice: $5.99 Offer: $5.99
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 New York Post Difficult Sudoku: The Official Utterly Adictive Number-Placing Puzzle (New York Post Su Doku) Author: Wayne Gould Manufacturer: Collins ListPrice: $6.95 Offer: $6.95
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 The Ultimate Sudoku Challenge Author: Nikoli Manufacturer: Sterling ListPrice: $7.95 Offer: $7.95
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 200 Difficult Sudoku Puzzles Author: Peter Greene Manufacturer: Lulu Press ListPrice: $9.99 Offer: $9.99
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 Mensa Sudoku (Mensa) Author: Michael Rios Manufacturer: Sterling ListPrice: $7.95 Offer: $7.95
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 New York Post Extra Hot Su Doku: The Official Utterly Addictive Number-Placing Puzzle Author: Wayne Gould Manufacturer: Collins ListPrice: $5.95 Offer: $5.95
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 New York Post Sudoku 1: The Official Utterly Addictive Number-Placing Puzzle (New York Post Su Doku) Author: Wayne Gould Manufacturer: Collins ListPrice: $7.95
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 Advanced Sudoku: And Other Japanese Mind Puzzles Author: Puzzler Media Manufacturer: Running Press ListPrice: $9.95 Offer: $9.95
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 New York Post Sudoku 2: The Official Utterly Addictive Number-Placing Puzzle (New York Post Su Doku) Author: Wayne Gould Manufacturer: Collins ListPrice: $7.95
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 Grand Master Sudoku 1 Author: Wayne Gould Manufacturer: Collins ListPrice: $7.95 Offer: $7.95
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 Sudoku Genius : 144 of the Most Fiendish Puzzles Ever Devised Author: Tom Sheldon ListPrice: $8.00
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 New York Post Sudoku 3: The Official Utterly Addictive Number-Placing Puzzle (New York Post Su Doku) Author: Wayne Gould Manufacturer: Collins ListPrice: $7.95
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 New York Post Super Sudoku, Omnibus Edition Author: Wayne Gould Manufacturer: Collins ListPrice: $16.95
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 Grand Master Sudoku 2 Author: Wayne Gould Manufacturer: Collins ListPrice: $7.95 Offer: $7.95
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 Advanced Sudoku Author: Puzzler Media Manufacturer: Thunder's Mouth Press ListPrice: $10.00
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 New York Post Sudoku 2 : The Official Utterly Addictive Number-Placing Puzzle (New York Post Su Doku) Author: Wayne Gould Manufacturer: Amazon Remainders Account ListPrice: $7.95
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 The Sudoku Book, Advanced Edition Author: Sam Griffiths-Jones Manufacturer: Harriman House
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