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Sudoku Puzzle Book
註釋Grab this collection of Sudoku puzzles of varying difficulty levels. Sharpen your mind and have some fun at the same time with these 500 Sudoku puzzles. There are four types of Sudoku puzzles: 4 x 4, 9 x 9, 16 x 16, and alphabetic (letters instead of numbers) in this book. Within each of these categories, the Sudokus range from easy to difficult. Makes a great gift for the sudoku puzzle lover. The book has wide margins, making it easier to work on the puzzles. The font size is also easy to see. Solutions for all puzzles are included at the end of the book.