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About game
The playing field is divided into nine rows, nine columns and
nine blocks. Every row, every column and every block
consist of nine cells in which you must enter numbers from 1 to 9.
Moreover, within nine cells of one row, one column
or one block cannot contain two identical ones
numbers.
The goal of the game is to find out which numbers are missing and correctly place them in all the empty cells of the square.
4 difficulty levels (easy, normal, difficult, expert).
It is possible to use hints and the “right” of three errors.
The complexity of Sudoku depends on the number of initially filled cells and on the methods that need to be used to solve it.
Playing Sudoku will help you feel the skill of solving logical problems and become a real Sudoku Expert.
How to play
You need to fill in all the empty cells using numbers from 1 to 9 (one number per cell), observing the following rules:
1. Numbers should not be repeated in the same square.
2. Numbers should not be repeated in the same column.
3. Numbers should not be repeated on the same line.
Thus, the same number can appear only once in each row, column and block.