Sudoku rules

Rules of the Sudoku are very simple. Square area is divided on 9 smaller squares. Each small square has 9 fields; some of them are filled with numbers 1-9. For solving Sudoku Puzzle, player has to fill other squares with numbers but the same number must not be used twice or more in each row and column of both large and small square.

Example of right solution

Starting puzzle: plansza Properly solved puzzle: plansza
Krzyzowki rebusy quizy sudoku