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Sudoku
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To solve a sudoku puzzle, you must fill in the squares with a
number from 1 to 9. But you need to follow three rules when
writing in numbers!
First, each column must contain only
one of each number from 1 to 9.
Second, each row must contain only
one of each number from 1 to 9.
And finally, each 3x3 box must contain
only one of each number from 1 to 9.
If you fulfill all three conditions and fill
every square, you will clear the puzzle!
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Touch the square you want to fill in to
zoom in on it. Write a large number
in the enlarged square.
To note a possible answer, write a
small number in the square. This is
called an Option. Each square can
hold up to nine Options.
To erase your answer, write a "0" in
the square or tap "Erase."
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