Sudoku rules

Sudoku puzzle looks like a grid with dimensions of 9 rows and 9 columns. The enigmatologist or solutionist, which are just fancy words for the puzzler, gradually adds numbers from 1 to 9 to the empty boxes so that each number are is exactly:

  • once in each row,
  • once in each column
  • once in every 3 times 3 square.
The rules of sudoku

In addition to the proper completion of Sudoku by following these rules it is important to do puzzle in the shortest time possible. If you are not comfortable with the difficult sudoks, try them on easy, then moderate and fight your way up to the fiendishly hard Sudoku.

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