This is a book with Level 2 Sudoku puzzles, the easy ones, which are just right for the beginners. If you think they may be too easy for you, pick the book with a different book cover color - a different level (from 1 to 6). Find the level that fits you best, and enjoy your time well spent. Either you want - to exercise your brain to boost your focus and mental abilities, or - to prevent early memory loss and to lower the risk of Alzheimer's disease, and to keep your mind young for years to come, or - to relieve your stress and to relax after a hard day at work, or even - to prepare for the...

This is a book with Level 3 Sudoku puzzles, the middle ground if you wish. If you think they may be too hard or too easy for you, pick the book with a different book cover color - a different level (from 1 to 6). Find the level that fits you best, and enjoy your time well spent. Either you want - to exercise your brain to boost your focus and mental abilities, or - to prevent early memory loss and to lower the risk of Alzheimer's disease, and to keep your mind young for years to come, or - to relieve your stress and to relax after a hard day at work, or even - to prepare for the next World...

This is a book with Level 4 Sudoku puzzles, or pretty hard ones. However, if you think they may be too hard or too easy for you, pick the book with a different book cover color - a different level (from 1 to 6). Find the level that fits you best, and enjoy your time well spent. Either you want - to exercise your brain to boost your focus and mental abilities, or - to prevent early memory loss and to lower the risk of Alzheimer's disease, and to keep your mind young for years to come, or - to relieve your stress and to relax after a hard day at work, or even - to prepare for the next World...

This is a book with Level 5 Sudoku puzzles, or really hard ones, which are just right for the proficients. If you think they may be too hard for you, pick the book with a different book cover color - a different level (from 1 to 6). Find the level that fits you best, and enjoy your time well spent. Either you want - to exercise your brain to boost your focus and mental abilities, or - to prevent early memory loss and to lower the risk of Alzheimer's disease, and to keep your mind young for years to come, or - to relieve your stress and to relax after a hard day at work, or even - to prepare...

This is a book with Level 6 Sudoku puzzles, the toughest ones. If you think they may be too tough for you, pick the book with a different book cover color - a different level (from 1 to 6). Find the level that fits you best, and enjoy your time well spent. Either you want - to exercise your brain to boost your focus and mental abilities, or - to prevent early memory loss and to lower the risk of Alzheimer's disease, and to keep your mind young for years to come, or - to relieve your stress and to relax after a hard day at work, or even - to prepare for the next World Sudoku Championship, or...

Tired of classic Sudoku puzzles? Craving for something other than 9x9 grids? Here is the first book of the Samurai Sudoku series containing very easy puzzles. Each book of this series offers one difficulty level and 200 unique puzzles. Among six books of this series, you will find the one that fits your mastery just perfectly. HAPPY SOLVING

Tired of classic Sudoku puzzles? Craving for something other than 9x9 grids? Here is the second book of the Samurai Sudoku series containing easy puzzles. Each book of this series offers one difficulty level and 200 unique puzzles. Among six books of this series, you will find the one that fits your mastery just perfectly. HAPPY SOLVING

Tired of classic Sudoku puzzles? Craving for something other than 9x9 grids? Here is the third book of the Samurai Sudoku series containing medium hardness puzzles. Each book of this series offers one difficulty level and 200 unique puzzles. Among six books of this series, you will find the one that fits your mastery just perfectly. HAPPY SOLVING

Tired of classic Sudoku puzzles? Craving for something other than 9x9 grids? Here is the fourth book of the Samurai Sudoku series containing pretty hard puzzles. Each book of this series offers one difficulty level and 200 unique puzzles. Among six books of this series, you will find the one that fits your mastery just perfectly. HAPPY SOLVING

Tired of classic Sudoku puzzles? Craving for something other than 9x9 grids? Here is the fifth book of the Samurai Sudoku series containing very hard puzzles. Each book of this series offers one difficulty level and 200 unique puzzles. Among six books of this series, you will find the one that fits your mastery just perfectly. HAPPY SOLVING