Sudoku - description and rules.

The modern form of Sudoku was invented in 1986 in Japan.
The objective of puzzles is to fill a 9x9 grid so that each column, each row, and each of the nine 3x3 boxes contain the digits from 1 to 9 only one time each.
Digits cannot repeat in box, row or column.

On the Puzzles MIX portal you can solve ready puzzles, use a suggestion of "Solver" and create your own Sudoku boards and solve them, and print.
 
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