Killer Sudoku and His Friends: Killer sudoku and Kin-kon-kan medium - hard levels. : Sudoku puzzles book to the road. (Series #7) (Paperback) - Walmart.com
1,000 + Games jigsaw killer sudoku 9x9: Logic puzzles hard - extreme levels a book by Basford Holmes
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Killer Sudoku Puzzles by Krazydad
Killer Sudoku Puzzles by Krazydad
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Killer sudoku and Kin-kon-kan medium levels.: Sudoku puzzles mid-level book. (Paperback) | The Book Stall
1,000 + Games jigsaw killer sudoku 9x9: Logic puzzles easy levels (Paperback) | McNally Jackson Books
400 classic Killer sudoku 9 x 9 HARD + BONUS 250 Hidoku puzzles: Sudoku with HARD levels puzzles and a Hidoku 9 x 9 very hard levels by Basford Holmes, Paperback | Barnes & Noble®
9781074020095: Killer sudoku and Kin-kon-kan easy - medium levels.: Sudoku puzzles book to the road. (Killer sudoku and his friends) - Holmes, Basford: 107402009X - AbeBooks
Krazydad Psycho Killer Sudoku Volume 3: 360 Tough to Insane Puzzles : Bumgardner, Jim: Amazon.com.tr: Kitap