Sudoku: 96 medium puzzles
ISBN: 978-0-6480782-6-5
An attractively formatted Sudoku puzzle book containing 96 puzzles of medium difficulty. The introduction includes brief instructions on how to play, and solutions to all puzzles are included at the end of the book. This is the third book in a series of four books.
Sudoku: 96 hard puzzles
ISBN: 978-0-6480782-7-2
An attractively formatted Sudoku puzzle book containing 96 diabolically difficult puzzles. The introduction includes brief instructions on how to play, and solutions to all puzzles are included at the end of the book. This is the final book in a series of four.