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When did leonhard euler invent sudoku?
It doesn't look as if Euler was involved with the invention of Sudoku. http://en.wikipedia.org/wiki/Sudoku#History
Does Sudoku require math?
No, you can do Sudoku with letters or shapes sometimes. You don't actually have to add or subtract or do math calculations when playing it.
What is a puzzle using letters for numbers called?
Sudoku
Why can you not make a sudoku puzzle with all prime numbers?
I am assuming you are referring to a normal 3x3 sudoku grid, where you can only use the numbers 1-9 once in the grid, and by prime number you mean the 3digit number across and down the grid must be prime? For a number to be prime, it must end in 1, 3, 7 or 9. There are 5 places on the Sudoku grid for a number to finish and as you can only use a number once in sudoku you have one place left where the number can not be prime. This means the most you can have is 5 prime numbers.
How can a sudoku box with five prime numbers not contain 941?
A sudoku box cannot contain 5 prime numbers, so it is obviously an error. And once you accept that the numbers in the box are simply nonsense numbers, anything is possible.
