1,000 + New sudoku killer 10x10: Logic puzzles easy - medium levels (Killer sudoku): Holmes, Basford: 9781688527904: Amazon.com: Books
400 classic sudoku 9 x 9 VERY HARD LEVELS + BONUS 250 Labyrinth puzzles: Sudoku with VERY HARD level puzzles and a Labyrinth 21 x 21 very hard levels: Holmes, Basford: 9781727228700: Amazon.com: Books
Amazon.com: Adult sudoku jigsaw Killer. Calcudoku puzzles. Easy - medium levels.: Sudoku siesta. (Killer sudoku and his friends): 9781082036361: Holmes, Basford
SUDOKU- Puzzle- 250 Challenging Puzzles with Answers: sudoku puzzle with answers: Solver, Sudoku: 9781533650702: Amazon.com: Books
Amazon.com: 400 classic sudoku 9 x 9 + BONUS 250 Labyrinth puzzles very hard levels: Sudoku with EASY, MEDIUM, HARD, VERY HARD level puzzles and a Labyrinth 21 x 21: 9781727183894: Holmes, Basford: Books
Killer sudoku and Kin-kon-kan easy - medium levels.: Sudoku puzzles book to the road. (Killer sudoku and his friends): Holmes, Basford: 9781074020095: Amazon.com: Books
1,000 + Sea jigsaw killer sudoku 8x8: Logic puzzles medium - hard levels: Holmes, Basford: 9781691978328: Amazon.com: Books
Adult sudoku jigsaw Killer. Calcudoku puzzles. Extreme levels.: Sudoku for home and tourism. (Killer sudoku and his friends): Holmes, Basford: 9781082027185: Amazon.com: Books
Logical book. Killer sudoku. Chain puzzles. Easy - medium levels.: For adults and children. (Killer sudoku and his friends): Holmes, Basford: 9781088476055: Amazon.com: Books