- This edition is made up of 750 Sudoku Puzzles that overlap Into 150 Samurai Style Puzzles - Sudoku Puzzles are a proven method for keeping the mind healthy and combating Alzheimer\'s and Dementia - Solutions are given at the end of the Book - All Puzzles in this volume are new, previously unpublished - Great fun for the whole family - Perfect gift for that special s. - This edition is made up of 750 Sudoku Puzzles that overlap Into 150 Samurai Style Puzzles - Sudoku Puzzles are a proven method for keeping the mind healthy and combating Alzheimer\'s and Dementia - Solutions are given at the end of the Book - All Puzzles in this volume are new, previously unpublished - Great fun for the whole family - Perfect gift for that special s