Contents

- 1 How does killer sudoku work?
- 2 How do you play Killer Sudoku 6×6?
- 3 How difficult is Killer Sudoku?
- 4 Is there any formula to solve Sudoku?
- 5 What is the digit rule in Sudoku?
- 6 Can you solve Sudoku without guessing?
- 7 Are there patterns in Sudoku?
- 8 What is the hardest level of Sudoku?
- 9 What is a nonet in Sudoku?
- 10 What do the numbers add up to in Sudoku?
- 11 What do the dotted lines in Sudoku mean?

## How does killer sudoku work?

The objective is to fill the grid with numbers from 1 to 9 in a way that the following conditions are met: Each row, column, and nonet contains each number exactly once. The sum of all numbers in a cage must match the small number printed in its corner. No number appears more than once in a cage.

## How do you play Killer Sudoku 6×6?

Rules: Place the digits 1-6 into each row, column and boldly marked area so that they all contain each digit once. The number in the cage indicates the sum of the digits in the cage, Digits can’t be repeated in any dashed cage.

## How difficult is Killer Sudoku?

Killer Sudoku is a fun number puzzle in the family of Sudoku puzzles. Hard Killer Sudoku levels have the same rules as any other level, the only difference is very few numbers on the grid from the beginning. This makes the game pretty hardcore and requires longer playing time to fill out all the numbers.

## Is there any formula to solve Sudoku?

For example, in the first and fourth columns beginning from the left of the 9×9 grid, we can form the following equations: m+n=a, g+n+f=g+c. In the second and last rows beginning from the top of the 9×9 grid, the following equations can be formed: b +g+f=a+g, e+n+m=a+b+d.

## What is the digit rule in Sudoku?

In a sudoku region each digit appears exactly once. For example, if a digit appears in a row, it cannot be in any other cell in the row. Likewise, each digit can appear in a cage only once. If a digit is in a cage, it cannot appear in that cage again.

## Can you solve Sudoku without guessing?

Sudoku is a puzzle involving logic – no arithmetic or guessing is required! The basic idea of completing puzzles is to find cells (the small squares) where you are sure that only one value is a valid placement.

## Are there patterns in Sudoku?

Details. Patterns are essentially a series of completed numbers (either givens or numbers that have been filled in) in a specific order in one of the boxes on the sudoku grid. Patterns help you organize the remaining numbers and eliminate possibilities in a box, and in related boxes, rows and columns.

## What is the hardest level of Sudoku?

In 2012, Finnish mathematician Arto Inkala claimed to have created the “World’s Hardest Sudoku”. According to the British newspaper The Telegraph, on the difficulty scale by which most Sudoku grids are graded, with one star signifying the simplest and five stars the hardest, the above puzzle would ” score an eleven”.

## What is a nonet in Sudoku?

Nonet – Another term for the boxes or regions of a Sudoku. In some variants nonets are not equally shaped. Proper Sudoku – A Sudoku with one solution. Sudokus are always expected to be proper Sudokus unless the puzzle setter specifies otherwise. Region – Another term for the boxes of a Sudoku.

## What do the numbers add up to in Sudoku?

More specifically, the assumption is: All solved Sudoku puzzles, where “solved” is defined as a 9×9 grid having the set 1-9 in each column, row, and 3×3 quadrant, can be verified as solved by taking the sum of each row, column, and quadrant, as the sum will always be 1215.

## What do the dotted lines in Sudoku mean?

Killer Sudoku is different because you don’t get any numbers to start you off. Instead you get dotted lines ( ‘cages’ ) around groups of boxes with a small number in their corners. The numbers inside the cage must add up to the number in the corner, and no repeats.