Sudoku is a Switzerland from the 18th century, after the development in the United States and Japan to be carried forward mathematical jigsaw puzzle. Puzzle is the squares (ie, 3 cells wide × 3 grid H) of square-shaped, each divided into a fine grid squares. Small squares in each of the respective fill in the figures 1-9, so that the whole big squares in each column, each row not repeat. Sudoku gameplay logic is simple, the ever-changing digital arrangement. Many educators believe that Sudoku is a good way to exercise their brains.
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