The Ins & Outs Of Killer Sudoku: A Comprehensive Guide For Beginners

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You might have heard of Sudoku before, but did you know there’s a fun variation that can help you boost your brainpower? Killer Sudoku is a variation on the classic number puzzle where the rules of the game can change during play, which makes it much more interesting and challenging than regular Sudoku puzzles.

If you’re ready to get started with this fun new puzzle and challenge your mind, read on for our guide to Killer Sudoku rules!

An Example of Un-Solved Killer Sudoku is Below:

Example of Un-Solved Killer Sudoku
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How do you play killer sudoku?

The rules of playing this Sudoku variant are simple, Easy to Understand, Few are given below:

  • Each row, column, and 3×3 box must contain all numbers 1 through 9, So take a start By Solving Easy Task First.
  • Additionally, there must be only one instance of each number in any given grid.
  • In this Sudoku variant, each move is carefully restricted by killer rules that force you to consider every number only once per game.
  • Must clear this concept addition of numbers should equal to cage
  • Repetition of numbers should not occur.
  • Avoid repetition of cages

You can get help from the image shown below.

How do you play killer sudoku
Solved Puzzle: Image Source

What is the point of playing killer sudoku rules?

There is not one single definition that describes killer sudoku rules.

It is more like a game of imagination and logic.

Each player is expected to have the ability to be logical and also should have certain skills as they are required to play Sudoku efficiently.

Many internet-based puzzle sites offer great online killer Sudoku games which also require players’ skills with the sharpness of mind so that they can defeat their opponents in solving questions.

So all these factors tell us what is Killer Sudoku?

If you think you have good knowledge and enough talent, then it’s time for you to check out those websites and enjoy some time playing those Killer Sudoku Games!

How to win at killer sudoku

A killer sudoku game is just like any other sudoku game, but with a twist.

To win at killer sudoku

  • You have to figure out which numbers have been filled in on purpose and which ones are mistakes.
  • It’s essentially like looking for patterns instead of solving equations.
  • A lot of people say that it’s impossible to beat this sudoku variant because they’re just too hard—but that’s not entirely true! So, Keep in Mind Nothing is Impossible.
  • The only difference between regular games and killer games (other than their name) is that one wrong move can cost you everything.
  • With some practice, however, you should be able to get pretty good at spotting errors quickly and avoid making them yourself!

Killer Sudoku solving techniques

Many different techniques can be used to solve these Sudoku variant puzzles. In this article, we will discuss five of the most popular techniques.

  • The first step is to identify the rows and columns that contain the numbers 1 through 9. This can be done by scanning the grid for these numbers and noting where they appear. Once you have located these rows and columns, you can start to fill in some of the blanks.
  • The next step is to identify any possible pairs of numbers that could go together. For example, in the grid below, there are two 2s in the second column. This means that 2 can only appear once in that column.
  • Start by selecting three numbers from your puzzle that add up to 2 and one number that adds up to 1
  • Combine these four digits into two different cells within your puzzle until only one digit remains.
Killer Sudoku solving technique
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Killer Sudoku solving techniques (Multiple Square 45 Rule)

There are a few different ways to solve this Sudoku variant puzzle. The most popular method is the Multiple Square 45 Rule. This rule can be used to solve any Killer Sudoku puzzle, regardless of its size or shape.

  • The first step is to identify all of the squares in the grid that contain at least one number. These squares are called “numbers squares”. There are usually six or seven of them in a typical Killer Sudoku puzzle.
  • The next step is to find all of the squares that contain two numbers. These squares are called “double-number squares”
  • When you’re stuck on hard sudoku, you may feel tempted to pull out your calculator and use trial-and-error to solve it.
  • The key to solving Killer Sudoku puzzles is locating clusters of these squares and taking advantage of interlocking relationships between them.
Killer Sudoku solving techniques (Multiple Square 45 Rule)
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  • Follow Unique Sum Rule, Discussed below.
Killer Sudoku solving techniques (Multiple Square 45 Rule follow unique sum rule)
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  • Follow Rule of K
Killer Sudoku solving techniques (Multiple Square 45 Rule follow K rule)
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Example of a Killer Sudoku puzzle

An example of a killer sudoku puzzle.

Look at where 9s and 2s are placed in each row, column, and box.

Each box or group of cells can only have 1 instance of any given number value assigned to it.

If any cell has already been used for another number value in that grouping, there must be no other instance of that number value available to be assigned to that cell.

To illustrate further, if you look at how many 3s and 6s are marked off (the numbers with red highlights), they must not be repeated within their corresponding rows or columns because they are already taken as shown above by numbers 1-3 and 5-6 respectively.

Killer Sudoku tips

If you want to improve your Killer Sudoku skills, start by learning the basic techniques.

Several strategies can help you solve the puzzles more easily.

  • One of the most important things to remember is that this Sudoku variant is all about elimination. You can eliminate possibilities by looking at the intersecting numbers in a row, column, or block.
  • If two numbers in a row or column both have a possibility of being the target number, then one of those numbers can be eliminated.
  • You can also use the X-Wing technique to eliminate possibilities. This technique involves looking at two intersect
  • Another method is to use a diagram. This is a visual representation of the puzzle that can help you to see which squares are possibilities for each number. You can then eliminate squares as you go until you have a solution.
  • Another strategy is to use the cage method. This involves looking at the small cages formed by the numbers in the grid. The numbers in each cage must add up to the total in the cage. You can use this information to figure out which numbers go in which squares.
  • Last is to look for number combinations. For instance, if you see two squares in the same row or column with the same number, that number can go in both squares.

The following are some additional tips to help you get started with this Sudoku variant:

  • Start by solving the easy puzzles to gain some basic skills.
  • Make sure you understand the rules of the game before you start solving puzzles.
  • Use logic and elimination techniques to find the correct solution.
  • Use a pencil to mark.

What’s the difference between Sudoku and Killer Sudoku?

Killer Sudoku is just like traditional Sudoku, with one key difference – you get to choose whether or not each number appears once in each row, column, and 3×3 box.

In normal Sudoku, those numbers are assigned for you; in Killer Sudoku, it’s up to you. This means there are thousands of possible variations and hundreds of unique puzzles to solve!

The fun part about playing and solving these types of puzzles is finding new ways to think about how they work.

To get your creative juices flowing as you consider new strategies and new approaches here are some killer ideas that can help set you apart from other players

Are Killer Sudoku rules hard?

If you’re looking for something to challenge your brain, you’ll love this sudoku variant.

Like regular sudoku, this sudoku variant includes nine blocks of three cells each.

The objective of this sudoku variant is to fill in these cells with digits so that each column, row, and 3×3 square contains all of the numbers from 1 through 9.

A killer twist on classic sudoku comes from its numerical clues; as well as giving you hints about what numbers to include in a block or group of blocks, these clues also specify whether certain cells can be included or excluded from those blocks.

In short, it’s both more challenging and more fun than regular old 9-block puzzles!

The best Killer Sudoku tactic

Some people find this Sudoku variant difficult because they don’t know how to start.

If you are one of those people, here is a killer tactic that will help you solve the puzzle.

  • The best way to start is by finding the two numbers in the row or column that are the furthest apart.
  • Once you have those two numbers, you can start to eliminate them.
  • The challenge is to find the other squares that contain the same number.

Why you should play Killer Sudoku

A few reasons why anyone can play this Sudoku variant are Just Below:

  • Killer Sudoku is a great way to improve your mental agility.
  • The puzzles are fiendishly difficult, but they’re also great fun.
  • Playing Killer Sudoku regularly can help to keep your mind active and alert.
  • It can also help to improve your problem-solving skills, and your ability to think laterally.
  • Killer Sudoku is a great mental exercise. It is one of the most challenging puzzles that you can do and it is very addictive.
  • The best part is that you can do it anywhere, anytime.

Killer Sudoku: New Logic And Patterns


Killer Sudoku is a great way to improve your Sudoku skills.

This article provides a tutorial on how to play Killer Sudoku and offers some tips to help you get started.

If you are looking for a fun, challenging Sudoku puzzle, give this Sudoku variant a try.


Killer Sudoku is a fun and challenging puzzle game that can be enjoyed by people of all ages.

If you are looking for a new puzzle to solve, give this Sudoku variant a try.

You can find the game online or in your favorite newspaper.

Be sure to like and comment on this post if you enjoyed it.

Also, learn

Advance Sudoku Strategies you really need to know