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Quiz about Sudoku the addicting game of logic

Sudoku, the addicting game of logic Quiz

Sudoku is a fill-in-the-blank game of logic that you have probably seen in your local newspaper. How much do you know about this addicting game?

A multiple-choice quiz by fabulouscoops. Estimated time: 20 mins.

Author
fabulouscoops

Time
20 mins

Type
Multiple Choice

Quiz #
271,104

Updated
Dec 03 21

# Qns
10

Difficulty
Difficult

Avg Score
4 / 10

Plays
687

Question 1 of 10

1. The game we now know as Sudoku is a played on a grid with the numbers 1-9. Where was this game originally invented? Hint

Japan

Italy

Germany

United States

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Question 2 of 10

2. What is the best method for solving a Sudoku puzzle? Hint

Luck

Trial and Error

Math

Logic

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Question 3 of 10

3. What mathematical construction are Sudoku puzzles based on? Hint

Persian squares

Roman squares

Latin Squares

Greek squares

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Question 4 of 10

4. How many solved Sudoku puzzles (with all the numbers filled in) can be constructed from a standard 9x9 Sudoku grid? Hint

Billions

Nine

Only one

Eighty One

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Question 5 of 10

5. The first Sudoku world championship won by 31 year old Jana Tylov�. It was held in 2006 in what European country? Hint

Italy

Norway

England

Sweden

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Question 6 of 10

6. Sudoku puzzles are classified as Easy, Medium, Hard, or Challenging by what method? Hint

The number of squares that are filled in to start.

How long a computer takes to solve it.

By proclamation of the current Sudoku dojo master.

The number of empty spaces at the start.

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Question 7 of 10

7. In what decade did Sudoku become internationally popular? Hint

1990s

2000s

1980s

1970s

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Question 8 of 10

8. Sudoku puzzles are normally created using the numbers 1-9. What other symbol(s) can be used to make a Sudoku-like puzzle? Hint

Chinese characters

Colors

Any of these can be used.

Letters of the alphabet

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Question 9 of 10

9. Typically, how long does it take an experienced player to solve an easy Sudoku puzzle? Hint

Ten to twelve hours

A few minutes

Less than 10 seconds

A weekend

10. The original name in Japanese for we now call "Sudoku" was "Suuji wa dokushin ni kagiru" which means "the digits must be single". Who came up with the shorter name now used throughout the world? Hint

Howard Garns

Maki Kaji

Dell magazines

The Seattle Sun Times

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Quiz Answer Key and Fun Facts

1. The game we now know as Sudoku is a played on a grid with the numbers 1-9. Where was this game originally invented?

Answer: United States

The game was invented in the US by a man named Howard Garns in 1979 who called it "Number Place". It became highly popular in Japan in the mid 1980s under the new name of Sudoku, which means "single number".

2. What is the best method for solving a Sudoku puzzle?

Answer: Logic

Sudoku is not a math-based game. Objects, letters colors or symbols could be used instead of numbers.

3. What mathematical construction are Sudoku puzzles based on?

Answer: Latin Squares

The Swiss mathematician Leonhard Euler was the first to popularize Latin squares in the 1700s. He used Latin letters instead of numbers as a way to solve logic problems. Sudoku puzzles are a special subset of Latin squares where each 3x3 grid must also contain the numbers 1 through 9.

4. How many solved Sudoku puzzles (with all the numbers filled in) can be constructed from a standard 9x9 Sudoku grid?

Answer: Billions

The 9x9 grid has over 5 billion unique arrangements of numbers if you take into account rotations of the grid. This number was proved in 2005 using a computer program.

5. The first Sudoku world championship won by 31 year old Jana Tylov�. It was held in 2006 in what European country?

Answer: Italy

The grueling two day long Championship was held in March 2006 in Lucca, Italy and won by the Czech Republic native, who was an accountant. Participants were tasked with solving both standard Sudoku puzzles as well as a number of variants in timed events.

6. Sudoku puzzles are classified as Easy, Medium, Hard, or Challenging by what method?

Answer: How long a computer takes to solve it.

How many numbers are given to start a puzzle makes less of a difference than where they are placed. This difficulty can only be judged by actually solving the puzzle.

7. In what decade did Sudoku become internationally popular?

Answer: 2000s

Sudoku was invented in 1979 but did not gain worldwide popularity until 2005, making it a very recent phenomenon. Sudoku has been called the Rubik's Cube of the 21st Century.

8. Sudoku puzzles are normally created using the numbers 1-9. What other symbol(s) can be used to make a Sudoku-like puzzle?

Answer: Any of these can be used.

Any symbol can be used, even colors as long as there are nine of them and they are all different. Sudoku is a game of logic, not math.

9. Typically, how long does it take an experienced player to solve an easy Sudoku puzzle?

Answer: A few minutes

While some Sudoku puzzles can take a long time to solve, easy ones usually just take a few minutes.

Answer: Maki Kaji

Maki Kaji was president of a Japanese puzzle publishing company called Nikoli in 1984 when he invented the name which was later trademarked.
The inventor, Mr Garns, and Dell magazines used the name "Number Place".

Source: Author fabulouscoops

This quiz was reviewed by FunTrivia editor WesleyCrusher before going online.
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