The objective of Sudoku is to fill every row, column and box (3x3grid) with numbers 1-9 and each row, column, and box must have each number exactly once.
Playing Sudoku is not just a fun way to pass the time, due to its logical elements it has been found as a proven method of exercising and stimulating portions of your brain, training it even, if you will and just like training any other muscle regularly you can expect to see an improvement in cognitive functions. Some studies go as far as indicating regular puzzles can even help reduce the risk of Alzheimer's and other health problems in later life.
Completing Sudoku regularly helps the brain process both problem solving and improves logical thought process with the use of deductive reasoning, which can also be applied to approaching real life challenges in a different manner.
Playing Sudoku on a daily basis helps to keep an active mind and players often see improvements in their overall concentration.
Sudoku is an excellent game of reasoning and doesn't require any calculating nor understanding of mathematics and is therefore suitable for beginners as well as advanced players, all you require is some concentration and thought. If for gentle brain exercise or relaxing try your hand and have some fun with Sudoku.
This book has been divided into five chapters ranging in level from beginner, easy, medium, hard until expert.
Each puzzle can earn you between 1 and 25 points according to difficulty. There is a score sheet at the end of each chapter where you can fill in your score. When you have worked through each chapter, add up your points and see how close you are to the maximum possible. At the end there is a sheet where you can total your points for the whole book. How close can you get to the perfect score of 3900 points?
Whatever score you achieve, we hope this will be an entertaining and uplifting mental workout, enjoy Sudoku from beginner to expert.