Classic sudoku - a numbers puzzle.The goal of the game is to fill the 9x9 field with numbers from 1 to 9 so that they do not repeat in the same column, row and square.This game trains the mind, develops logical thinking and attentiveness.Sudoku Master has several levels, from beginner to expert! Upgrade your Sudoku solving skills and become a Sudoku Master! 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.