Super Fiendish Su Doku Book 1

200 super fiendishly hard sudoku puzzles packaged in a stylish paperback - this is the perfect book for the avid sudoku fan. The 9 x 9 sudoku grids are each arranged on their own page and solutions are easily found at the back of the book. Printed in a highly portable format, the book can be taken on your travels or sit neatly on your nightstand.