answersLogoWhite

0

Sudoku

Sudoku is a number-placement game. The object is to fill out the nine-by-nine grids with numbers that do not repeat on both the row and column of the grid.

119 Questions

How many solutions to sudoku?

The total number of valid Sudoku solutions for a standard 9x9 grid is approximately 6.67 billion (or 6.67 × 10^9). However, the exact number is 6,670,903,752,021,072,936,960, which is a result of combinatorial calculations. Each configuration must adhere to the rules of Sudoku, where every row, column, and 3x3 subgrid contains the digits 1 through 9 exactly once. This immense number reflects the complexity and variety of Sudoku puzzles.

What is the sum in sudoku?

In Sudoku, the "sum" typically refers to the total of the numbers in a row, column, or region (usually a 3x3 subgrid) that must equal the same set of numbers. In a standard 9x9 Sudoku puzzle, each row, column, and 3x3 region must contain the digits 1 through 9 without repetition. Therefore, the sum of the numbers in each row, column, or region is always 45, since the sum of the numbers 1 to 9 is 45. This characteristic helps ensure that each area of the grid is filled correctly.

Is there any easy way to do a sudoku spelling puzzle?

Yes, an easy way to tackle a Sudoku spelling puzzle is to start by filling in the most obvious letters based on the existing clues. Look for rows, columns, and boxes that have the most letters already filled in, which can help you deduce missing letters. Additionally, using a pencil to jot down possible letters for each empty cell can assist in eliminating options as you progress. Finally, solving small sections of the puzzle first can make it more manageable.

Where can you find answers for the Everything Giant Sudoku Book?

You can find answers for the Everything Giant Sudoku Book typically in the back of the book itself, where solutions are provided for all puzzles. Additionally, you may check the publisher's website or online forums dedicated to Sudoku enthusiasts for further support and discussion. If you're looking for specific strategies or tips, various Sudoku websites and apps also offer guidance and solution techniques.

Who discover sudoku?

Quality CBD Products CRAFTED WITH CARE Their proprietary Cold CO2 extraction process unlocks the Goodness & Healing of Hemp in it's purest Full-Spectrum form as Mother Nature intended. cutt.ly/Eh2sHPI

What is the world record time for completing a sudoku?

Home

Jakub Ondroušek has beaten the world recordWed, 06/16/2010 - 11:41 - Admin

Fast Sudoku solving world record fulfilling given conditions was held so far by Belgian Vincent Bertrand. His time was 3 minutes 6 seconds. This achievement was reached at the World Sudoku Championship 2009 in Žilina, Slovakia and is written in the Guinness World Records.

On Saturday June 12, 2010 there was a traditional the 'Dobrý den' Agency's International Festival of Records and Curiosities in Pelhřimov. Three worlds Sudoku champions Jana Tylová, from Most, and Honza Krtek Novotný and Jakub Ondroušek, members of the Sudoku club Kabrňáci from Brno, pitted their strength there. It was mainly about setting the Czech national fast Sudoku solving record and then about its improving. At first there was warming up at 'easy newspaper Sudoku puzzle' and after that our world champions had two attempts with two Sudoku puzzles created by fivefold world puzzle champion Robert Babilon.

Jakub Ondroušek settled the Czech record of 2.53 minutesin the he first attempt started by the legendary runner and world record holder Jarmila Kratochvílová and under 'Dobrý den' Agency's scrutiny.

The patron of the second attempt was sevenfold Olympic Games winner - a gymnast Věra Čáslavská. In this attempt Jakub Ondroušek beat his previous performance and improved the Czech record: Babilon's master Sudoku was solved in unbelievable short time of 1 minute 25 seconds. So, Bertrand's world record was beaten and markedly improved. And because Krtek's time in the second attempt was 2:16 min, this means that the world record was beaten three times in Pelhřimov.

The fight was really exciting because Krtek always had the great start, whereas Kuba was excellent in the end. And the end was the crucial moment. Jana Tylová chimed in well, but smashing hot weather did its 'fair whack'.

Great thanks to all people involved for their participation in the festival, for their good representation of SČHAK, and for the fact they were able to hold the audience and to give outstanding performances.

Zdeněk Chromý

The conditions for fast standard Sudoku solving competitions - STD-27

1. The solver has to fill in the grids with the single number 1 to 9 so that each number appears exactly once in every row, column and bolded 3x3 box.

2. There is measured the time made by the solver for completely correct solution of standard Sudoku (see below). The best achieved time is registered as the record.

3. The terms of standard Sudoku STD-27:STD-27:

a) The grid with 9x9 cells and with bolded 3x3 boxes.

b) In the grid there are given 27 single digits (one third of the whole number) from 1 to 9, each of them is there three times.

c) In each row, column and bolded 3x3 boxes there are exactly 3 single digits.

d) The arrangement of the digits must assure solubility directly and logically and there must be exactly one correct solution.

Sudoku 1

Author: Robert Babilon

Jakub Ondroušek's time: 2 minutes 53 seconds

Sudoku 2

Author: Robert Babilon

Jakub Ondroušek's time: 1 minute 25 seconds

Honza Krtek Novotný's time: 2 minutes 16 seconds

How many possible sudoku combinations are there?

want total answer possible of different sudoku 9 x 9 total amount only

What are the kinds of sudoku?

SUDOKU or Single Number, is a Japanese number puzzle that has swept through the world with the same gusto as the Rubiks Cube. Newspapers carry it, software houses, toyshops and bookshops sell a great deal of it. There is even a world championships. In the basic form it is a nine-by-nine grid divided into nine (sub-set) squares of nine squares. Numbers between one and nine are strategically placed by the compiler and the player is invited to fill in the rest. The rules are very simple, the game is incredibly addictive. Fill in all the squares with one number each of one to nine. There are to be no repeated numbers in any vertical or horizontal line nor a repeated number in any sub set (square) of nine squares. How hard can it be? Common variations of Sudoku are 8x8, 12x12 and 16x16 squares. Letters or shapes can be substituted for numbers. Other Japanese number puzzles include Kakuro, Kokonotsu, Kikagaku, Samu.

What game like sudoku starts with a k?

Kakoru or kakuru is a cross between sudoku and crossnumbers puzzles. There's also "killer sudoku" which is just a larger grid size (12x12 or 16x16.)

What countries have free online sudoku?

Most countries with access to the internet have free online sudoku games. If for some reason the site you most enjoy is blocked in your country it can still be accessed by using an internet proxy server that sets your IP address to a different country.

Is Sudoku hard?

There is great variability in the difficulty of Sudoku puzzles. Some can be very easy once you learn some simple techniques for solving them. Other puzzles can be extremely difficult!

What makes sudoku puzzles so easy?

Sudoku puzzles so popular with students because they give your brain a workout. They like puzzles to train their brain and finding the blocks for the numbers is a fun challenge.

How does sudoku work?

You need to fill every row, column, and 3x3 box with the numbers 1-9 without repeating.

If you were to add up all the numbers in a single Sudoku puzzle what would be their sum?

Sudoku does not have any addition. You just have to make sure that each row, column and 'sub square' has each of the nine digits (1-9) only once.

What is different 9x9 sudoku grids are there?

6,670,903,752,021,072,936,960 , or 6.67*10^21.

What is the secret to sudoku?

The numbers 1-9 have to be in each bix, row and column. So if you have one with 8 numbers, you can work out the last one. And you can see where a number goes in a box if it's in that row or column, you can't put it in that row or column in the box.

In how many ways can you fill a sudoku?

There is only one way to correctly fill a sudoku.

Where can you copy a sudoku from?

Lovers of sudoku can visit the BrainBashers website where they can find daily sudoku games. Billions of free sudoku can also be found on Websudoku. This is unlimited and can be played on all devices such as android or Ipad.

What are the main rules of the game Sudoku?

The main rules of the number game Sudoku is the have one of every number in each line up , down and in each block. You can not have the same of any number in the same area on the board.

What is the highest number in a sudoku puzzle?

The puzzle known as "Al Escargot" (the snail) is currently considered the hardest Sudoku puzzle. It was created by a Finnish mathematician called Arto Inkala.

One of the hardest Sudoku books available is "Extreme Sudoku" by Antoine Alary, not to be confused with "X-TREME Sudoku" by Nikoli & Co. or "Sudoku Xtreme" by Christopher Monckton, which are both an order of magnitude easier.