What is Sudoku?
Sudoku is a puzzle loved all over the world. It is also known as Number Place.
It might look difficult, but there is actually only one rule. No calculations are required. All you need is logic.
Here, we will explain the basics so that even beginners can start solving it right away!
Rules: 3 Checkpoints
The goal of Sudoku is to fill the empty cells with numbers from 1 to 9. The rules are simple.
No number from 1 to 9 can be repeated in any row, column, or block. That's all!
In short, just remember: 'No duplicate numbers in the same row, column, or block!'
Basic Solving Technique: Elimination
So, how do we fill in the numbers? The easiest way is 'scanning'.
For example, if you want to place '1' in a block, project virtual beams horizontally and vertically from '1's in other areas.
You cannot place '1' in the cells the beams pass through. By narrowing down the candidates, you'll find only one empty cell remains. That's where the number goes!
Strategy: Where to Start?
The key to solving quickly is to look for 'areas that already contain many numbers'.
Are there any rows, columns, or blocks that only need one or two more numbers? The fewer candidates there are, the easier it is to find the answer.
Summary & Advice
It's okay if it takes time at first.
The thrill of finding a definitive cell where 'only this number can fit' is the true joy of Sudoku.
Let's start by challenging a simple puzzle!
Let's solve one puzzle!