Publisher's Synopsis
Sudoku X is an interesting change to the traditional Sudoku puzzle. Not only does each number occur exactly once in each row, each column, each region, the main diagonals must also contain each number exactly once. Volume 2 This book contains 200 Hard puzzles, 4 per page. We are sure you will find these puzzles offer an entertaining yet effective way to exercise your brain and keep your mind sharp. All puzzles have been checked to ensure there is only one valid answer. We never duplicate a logic puzzle in any of our books. Our books are printed on high quality 60 lb paper. Find more pencil puzzle books on Brainy's website! www.BrainysLogicPuzzles.com
