Best sudoku activity book for Dementia Patients From beginner to expert, this Sudoku book will have those suffering from Dementia / Alzheimer's occupied and mentally stimulated . With 100 puzzles, beginning with 4x4 puzzles, 6x6 puzzles and various difficulty 9x9 puzzles, you will see progress as they go and be ready to increase the difficulty over time. As with all Dementia and Alzheimers activities, Sudoku will work for some patients, and not for others. Some are more drawn to literary or artistic tasks, while other see much more improvement from numeracy or puzzle tasks. What is important is that your loved one continues to partake in mentally stimulating tasks. Sudoku is a mentally stimulating activity that is not to stressful for dementia sufferers, and has been proven to slightly increase memory recall and mental functionality, especially if a solid routine is developed. This book is in a perfect progressive learning style. The book begins with 4x4 grids, to learn the basic skills necessary to progress. From there 6x6 grids are used, to add a little more difficulty to the learning process, but still helping to get the basics down pat. From there the grids are expanded to 9x9, with 3 more levels of difficulty determined by the number of starting numbers. Book Features: Printed on premium white paper Soft cover; perfect bound Large print and easy to read numerals Instruction pages Answers / solutions for all puzzles Extremely Accurate Progressive skill level (Take each puzzle in order, as they are placed in order of difficulty) What is Sudoku? Sudoku is puzzle in which players insert the numbers one to nine into a grid consisting of nine squares subdivided into a further nine smaller squares in such a way that every number appears once in each horizontal line, vertical line, and square (known as region). Difficulty will vary depending on the size of the grids used and the number of starting numbers given.