Sudoku for Healthy Brain

Sudoku calms you down.

Sudoku keeps your brain healthy.

Sudoku protects you from alzheimer's.

Sudoku allows you to spend quality time.

Sudoku is a passion.

You can enjoy the pleasure of solving Sudoku with the carefully prepared "SUDOKU for a Healthy Brain" series. There are two puzzles of ideal size on each page. The solutions to all puzzles are listed at the end of the book.