Variety Logic Puzzles - Jigsaw Sudoku, Killer Sudoku 200 Very Hard Puzzles 9x...
Variety Logic Puzzles - Jigsaw Sudoku, Killer Sudoku 200 Very Hard Puzzles 9x9 Book 20 by Parker, Liam, ISBN 1709524278, ISBN-13 9781709524271, Like New Used, Free shipping in the US