What is Sudoku and how to play it ?

What is Sudoku  and how to play it ?

Sudoku  is  a popular   puzzle  game.It  is  a  logic  based  game.Millions of people around  the  world   enjoy  it  as  it  is  entertaining  and  easy  to  learn.It  challenges  logic  and  problem  solving skills.It is   a game  dependant on    logic , observation  and deduction.

It  consist  of  9 x 9 grids which  is further  classified  into  9 smaller  3 x 3  boxes.In this  game   some cells contain  numbers  and  some  are  blank  which  are  to  be  filled  up  through  logic  by  players  of  this  game.

The goal  of this  game  is to  fill the  blank  cells with  numbers  ranging  from  1 to 9.In this  game  each row   and column contains  every number from 1 to 9 but the rule is that numbers should be unique. Each 3 x 3 box contains every number from 1 to 9 exactly once.

Now let me tell you how to play this interesting game :

Step 1: Examine the Given Numbers

Start by looking at the numbers already provided in the puzzle. These numbers are clues that help you determine where the remaining numbers should go. Look for the missing  number

For example  Suppose a row contains

1 2  _ 4 5 6 7 8 9 

Here the missing  number is 3  so place 3 in the blank space

Step 2: Examine the Given Numbers

Then check  column

1

2

3

_

5

6

7

8

9

Here  the missing  number  is 4 

Step 3: Check the 3×3 Box

Each small 3×3 box must contain all numbers from 1 to 9.

 for example:

1 2 3

_ 5 6 

7 8 9

Here the missing number is 4.

Step 4: Eliminate Possibilities

If a number already exists in the same row

Step 5: Continue Until the Grid Is Complete

Keep checking rows, columns, and boxes until all cells are filled correctly., column, or box, it cannot be placed there. Use this rule to find the correct number for each empty cell.

For  Quick  Solution :

Step 1: Find Easy Numbers
Look for rows, columns, or boxes that already have many numbers filled in.

Step 2: Identify Missing Numbers
Check which numbers are missing from a row, column, or box.

Step 3: Use Elimination
If a number already appears in a row, column, or box, it cannot be placed there again.

Step 4: Fill in Certain Answers
When only one number can fit in a cell, write it in.

Step 5: Repeat
Continue checking rows, columns, and boxes until the puzzle is complete.

Hence  in short 

Start with easy puzzles.
Work slowly and carefully.
Focus on one row, column, or box at a time.
Use pencil marks to note possible numbers.
Practice regularly to improve your skills.

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