#
**sudoku**

## Sudoku in general

Each **sudoku** row, column and each 3x3 square contains the number from 1 to 9. This means that you must enter the number from 1-9. Each number can appear in the row / column / square only once. Already entered numbers in the **sudoku** table cannot be changed. The game **sudoku** is being solved by the given numbers and has only one solution.

## Sudoku row

Each **sudoku** row has 9 fields. Correctly filled row contains only one number from 1 to 9 and each is repeated only once. The table has 9 rows, rules apply to all of them.

## Sudoku column

Each **sudoku** column has 9 fields. Correctly filled column contains only one number from 1 to 9 and each is repeated only once. The table has 9 columns, rules apply to all of them.

## Sudoku square

3x3 **sudoku** square has 9 fields. Correctly filled **sudoku** must contain each number from 1 to 9. Numbers in the square must not be repeated, but each number must be repeated at least once. The table has 9 **sudoku** squares, each square must comply with this rule.