Sudoku Puzzle Book, 1,000 Puzzles, 500 Medium and 500 Hard: Improve Your Game With This two Level Bargain Size Book: Volume 37 (Sudoku Puzzle Books Champion Series) (en Inglés)
Relieve boredom and stress by playing Sudoku. With two levels of difficulty this jumbo bargain size Sudoku Puzzle Book will soon improve your game. There are 4 puzzles per page and solutions are at the end of the book.