When you buy this book you get an electronic version (PDF file) of the interior of this book. Become a master in solving Flower Sudoku. After solving all the pu

When you buy this book you get an electronic version (PDF file) of the interior of this book. Become a master in solving Star Sudoku. After solving all the puzz

When you buy this book you get an electronic version (PDF file) of the interior of this book. Become a master in solving Consecutive Sudoku. After solving all t

When you buy this book you get an electronic version (PDF file) of the interior of this book. Become a master in solving Outside Sudoku. After solving all the p

When you buy this book you get an electronic version (PDF file) of the interior of this book. Become a master in solving Non-Consecutive Sudoku. After solving a