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Timer
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Information
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Fastest Times
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0:00:00
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Choose your level to start?
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Instructions
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Sudoku requires no calculation or arithmetic skills. It is essentially a game of placing numbers in squares, using very simple rules of logic and deduction.- Each row of nine cells must contain each of the numbers from 1 to 9 once and only once.
- Each column of nine cells must contain each of the numbers from 1 to 9 once and only once.
- Each of the nine 3 by 3 boxes of nine cells must contain each of the numbers from 1 to 9 once and only once.
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