Title: Cuckoo Sudoku: Sudoku Variants That Will Drive You Batty, Author: Djape
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Title: Wild Sudoku Variants, Author: Conceptis Puzzles
Title: Way Beyond Black Belt Sudoku®, Author: Frank Longo
Title: Sudoku U: PhD in Sudoku, Author: Frank Longo
Title: Hard Sudoku, Author: Frank Longo
Title: Easy Sudoku, Author: Frank Longo
Title: Blockbuster Paint-doku, Author: Conceptis Puzzles
Title: Word Search Sudoku, Author: Frank Longo
Title: Will Shortz Presents Ultra Easy Sudoku: 300 Wordless Crossword Puzzles, Author: Will Shortz
Title: Sudoku U: Freshman Year, Author: Frank Longo
Title: Sudoku U: Senior Year, Author: Frank Longo
Title: Sudoku U: Junior Year, Author: Frank Longo
Title: Number-Crunching Sudoku: Math + Sudoku = 2× the Fun, Author: James W. Liber
Title: Will Shortz Presents the Jungle Book of Sudoku for Kids: 150 Fun Puzzles!, Author: Will Shortz
Title: Feng Shui Sudoku, Author: Frank Rubin