# Is Killer Sudoku harder than normal?

## Is Killer Sudoku harder than normal?

Despite the name, the simpler killer sudokus can be easier to solve than regular sudokus, depending on the solver’s skill at mental arithmetic; the hardest ones, however, can take hours to crack.

## Is using notes in Sudoku cheating?

Avoiding using notes As far as common Sudokus mistakes go, this is probably one of the most widespread. Hard Sudoku puzzles can prove to be impossible to solve without the visual aid provided by notes, due to the increased number of candidates per cell. It is not about cheating.

Is Killer sudoku good for brain?

It’s not only a good time killer but also helps you think, makes you more logical and have better memory. When you first open our Sudoku app, you see a guide tour teaching you how to play Sudoku and when you open the puzzle game app for the 100th time, you can see yourself a Sudoku master and a great Sudoku solver.

Is Sudoku a good brain exercise?

A brain game like sudoku, as well as crossword puzzles, taking classes, reading, and writing, can help delay dementia and Alzheimer’s disease, and protect the brain from decline. And, says Snyder, while it offers good exercise and stimulation for the brain, sudoku can actually be very relaxing.

### Is Sudoku a Japanese word?

The name “sudoku” is abbreviated from the Japanese suuji wa dokushin ni kagiru, which means “the numbers (or digits) must remain single.” It was even discovered in an Australian jury trial that instead of listening to evidence a number of the jurors were playing sudoku. The trial was declared a mistrial.

### Can a Sudoku have multiple solutions?

A Sudoku puzzle can have more than one solution, but in this case the kind of logical reasoning we described while discussing solving strategies may fall short. It turns out that for a Sudoku of rank n, at least n2-1 distinct symbols must be used for the puzzle to have a unique solution.

What counts as a mistake in Sudoku?

Sudoku is a game of placing numbers 1-9 in empty spaces within the same row, column or square – however, many beginning Sudoku players make the mistake of only focusing on rows (horizontal) or columns (vertical). We know from counting up the existing numbers in the square that the missing numbers are 1, 3, 5 and 8.

What is a killer sudoku?

Killer Sudoku (also called Sum Sudoku) are a kind of hybrid puzzle that combine the best features of Sudoku and Kakuro (cross-sum) puzzles. Like a regular Sudoku, the rows, columns and 3×3 blocks contain the digits 1 thru 9.

## How are the cage combinations calculated in daily killer sudoku?

When you do a puzzle online with Daily Killer Sudoku, the cage combinations are calculated automatically for you. Tap/click on a cell, and the combinations for its cage will be shown in the Combinations box.

## How many Sudoku puzzles are there?

There are five puzzles on this page: two killer sudoku puzzles and two “greater than” sudoku puzzles and one “greater than-killer” sudoku puzzle. You can play any of them online or print them out to play offline.

What are the rules of Sudoku?

Regular sudoku rules apply with the additional requirement that if a >, <, or = sign appear between two cells (or cages) then the values in the cells (or cages) must obey the relation. Let us know if you like these puzzles and how hard you find them.

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