Sudoku:-The Intrepid Brainiac Sudoku: Premium Sudoku: 100 Puzzles ( Easy, Medium, Hard and Expert Levels)
Sudokus origins can be traced as far back as the 19th century in France, where newspapers featured variations of the puzzle. By 1986, the Japanese puzzle company Nikoli made it popular in its modern form.
Intrepid Brainiac Sudoku contains 100 puzzles and comes in a handy pocket size so you can take it everywhere and play at anytime.
Aside from being challenging and enjoyable, Sudoku actually helps your brain to stay healthy, reducing the risk of developing Alzheimer's disease.
With Sudoku, you can also boost a range of skills, including problem-solving, logic, numerical, as well as improve memory and increase concentration. What's more, it gives you such a good feeling of accomplishment when you complete each puzzle!
Puzzle book picture is for illustrative purposes only, actual cover or edition may vary.