preface
Guide: Sudoku Terminology Used in This Book
Learn the basic strategy
Beginner Training Problems 001-100
Full House
Hidden Single [Find in Room]
Pointing Training [Find the Numbers in Order]
Pointing Training [Find the Number Order]
■ Sudoku 001~050
Hidden Single [Find in line]
■ Sudoku 051~080
Intersection
■ Sudoku 081~100
Beginner Practice Problems 101-300
■ Sudoku 101-300

Intermediate Training Problems 301-380
Hidden Pair
■ Sudoku 301-340
Naked Single
Naked Pair
Naked Triple Naked Pair
■ Sudoku 341-380
Intermediate Practice Problems 381-500
■ Sudoku 381-480
Uniqueness
■ Sudoku 481-500

Tournament Introduction: Korea Sudoku Championship KSC
Indian Sudoku Championship ISC
Sudoku Grand Prix GP
hint
solution

Created by the Korean national puzzler at the World Championships
The Bible of Sudoku Puzzles

Sudoku is a brain game where you fill in nine squares with numbers from 1 to 9.
In either a horizontal or vertical row, the numbers 1 through 9 must never be repeated within a small box.
Although it may seem like a simple rule, it is never easy to satisfy.
The true joy of logic games can only be experienced through logic and reasoning, not through guesswork or luck.
Author Lee Min-seok, a national puzzler, says that Sudoku problems don't end with finding the answer, but rather require a logical explanation of how you found the answer.
The problems he creates will bring the thrill of brain training to puzzlers who have been waiting for a more thrilling Sudoku.
Although various types of Sudoku have been introduced and are loved by people all over the world, puzzlers always yearn for more sophisticated and scientific Sudoku.
"Super Sudoku Training 500 Problems Beginner-Intermediate" will meet the expectations of such Sudoku fans.
It will also serve as a new guide for those who are hesitant to jump into the world of Sudoku.


Learn logical problem-solving techniques and create your own solutions.
Challenge the new world of Sudoku with Sudoku Training

There is no formula for solving Sudoku.
A formula is a rule that guarantees a result when certain conditions are met. Sudoku has simple rules, but it is by no means a simple puzzle that can be solved by mechanically substituting the formula without thinking about the principles.


However, there definitely is a 'logical Sudoku solving technique'.
The method of filling in the blanks by entering numbers as usual and repeating the process of entering different numbers if you get them wrong is still fun and brings a sense of accomplishment, but if you learn and use the 'technique' of solving puzzles logically without trial and error, a whole new world of Sudoku opens up.

Can we truly say we've solved the puzzle simply by getting the right answer? A solution like, "I just plugged in the remaining numbers and it turned out to be the answer," isn't a true solution.
Only when you can logically explain how you found the answer and the entire process leading up to it can you say you have 'solved' the puzzle.

If you want to experience the true fun of puzzles, learn the solving techniques and puzzle language shared by people around the world.
The joy you've been keeping to yourself is doubled, and you'll experience a remarkable improvement in your skills as you logically explain and communicate the solution process.
From hidden singles and intersections to naked singles, pairs, and triples, if you master and internalize the Sudoku solving techniques one by one, you will be able to solve any problem with the power of logic.

Improves logical thinking and concentration
The best brain development program

The appeal of Sudoku lies, above all, in its logical thinking and reasoning.
According to the rules, you have to think of the number that goes in the next square and compare it with the numbers in the other squares.
In this way, puzzlers naturally develop their brains by scientifically inferring and logically arranging numbers.
Solving Sudoku can help you improve your concentration, memory, and logical thinking.
Sudoku is also addictive, making it impossible to put the book down until the last square is filled in.
The thrilling sense of accomplishment you feel when you fill in all the squares is also an undeniable part of Sudoku's appeal.
With "Super Sudoku 500 Problems Training Beginner-Intermediate," you can experience the real Sudoku, where neither guessing nor luck can help, and only logic can win.