What is Sudoku?
The Effects of Sudoku
Basic rules of Sudoku
How to solve Sudoku in this book

introduction
Beginner
middle class
Advanced
Special

The world's most loved game
“There’s no better brain fitness than this!”

Sudoku is more than just a number-filling game; it's a number puzzle game that has a positive impact on the brain of people of all ages.
First of all, Sudoku is very helpful for children in developing their mathematical thinking and logical thinking skills.
As you fill in the blanks by understanding the relationships between established rules and numbers, your problem-solving skills will naturally improve, which has a significant impact on improving your overall concentration and attention span throughout your studies.


In adults, it helps improve cognitive abilities and memory.
The process of remembering the positions of numbers, analyzing patterns, and logically reasoning is effective in activating the brain and preventing memory loss. Immersing yourself in Sudoku can relieve stress, providing a sense of psychological stability, and the pleasure and sense of accomplishment you get from solving difficult problems can also help you find vitality in life.


Finally, for older adults, Sudoku is an essential activity for maintaining brain health.
It provides continuous stimulation to the brain, activating brain cell activity and slowing down brain cell degeneration to prevent dementia.
In particular, playing Sudoku consistently engages your memory and cognitive functions, which is very helpful in maintaining and improving brain functions that can decline as you age.
In this way, Sudoku plays a positive role in keeping the brain healthy and improving the quality of life regardless of age.


Stress Down, Achievement Up
“Immerse yourself in the joy of immersion!”

When you're tired of your busy and tiring daily life and need a break, "Everyone's Sudoku" will be the best escape.
Let's put aside the worries of complex reality for a moment and immerse ourselves in the world of number puzzles.
As we fill in the blanks one by one, our brains become focused only on numbers and logical rules.
This state of being completely absorbed in an activity is called 'flow', and when you reach this state, you lose track of time and temporarily forget about the worries and anxieties of reality.
In other words, when you solve Sudoku, your mind will become calm as if you are meditating, and the accumulated stress and anxiety will magically disappear.
At first, the blank spaces seemed overwhelming, but they are gradually filled in through logical thinking, and when you finally fill in the last number perfectly, you can experience a thrilling sense of joy and accomplishment.


Perfect composition from beginner to master
Sudoku for Everyone

《Everyone's Sudoku》 is the most perfect composition to fall in love with the charm of Sudoku.
Beginners who are new to Sudoku can start with 6x6 problems, build their foundation through beginner and intermediate 9x9 problems, and challenge true Sudoku experts with advanced problems that add diagonal rules to 9x9.
Lastly, the special problems consist of 10×10, 12×12, and 16×16, allowing you to experience Sudoku like you have never experienced before.
Also, by gradually increasing the difficulty of the problems within each stage, you can become a Sudoku-maniac without even realizing it.
In this way, everything about Sudoku is contained in one book, “Everyone’s Sudoku,” so everyone from Sudoku beginners to enthusiasts can experience the joy of challenging themselves and growing.