Sudoku Master Game

The goal of the game is to complete levels from beginner to master in order to pump your rating and reach the pinnacle of Sudoku mastery.A field with 9x9 cells consists of 9 squares, in each of which you need to enter numbers from 1 to 9. But several rules must be observed:1. Numbers should not be repeated in one square.2. Numbers should not be repeated in the same column.3. Numbers should not be repeated in one line.