
Sudoku and the Number 17

Interactive Video
•
Mathematics, Fun
•
7th - 12th Grade
•
Hard
+6
Standards-aligned

Jackson Turner
FREE Resource
Standards-aligned
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why was the number 17 recently in the news related to Sudoku?
It is the maximum number of clues needed to solve a Sudoku.
It is the minimum number of clues needed for a unique solution.
It is the number of rows in a Sudoku grid.
It is the average number of clues given in newspapers.
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the main objective when solving a Sudoku puzzle?
To fill each row, column, and 3x3 square with numbers 1 to 9 without repeats.
To use as few numbers as possible.
To solve it faster than others.
To fill the grid with random numbers.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How many possible Sudoku grids are there?
6.7 million
6.7 billion
6.7 trillion
6.7 times 10 to the 21
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What was the estimated time for a computer to check all possible 16 clue starting positions?
300,000 years
300 years
3,000 years
30,000 years
Tags
CCSS.8.EE.C.8B
CCSS.HSA.REI.C.6
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What technique did Gary McGuire use to simplify the Sudoku problem?
He swapped rows and columns to create families of grids.
He reduced the grid size.
He used a new mathematical formula.
He increased the number of clues.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What are unavoidable squares in a Sudoku grid?
Squares that must be filled first.
Squares that can be left empty.
Squares that must contain at least one clue for a unique solution.
Squares that are always filled with the number 9.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How long did it take to complete the project proving the minimum number of clues?
One year
Two years
Six months
One month
Tags
CCSS.8.EE.C.8B
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