Sudoku - numeric puzzle! Examine your analytical skills! Sudoku is named "magic square". In this game a widely popular and favourite puzzle is beautified with citations of great people. Picturesque views of Japan will help you dive into the process. Sudoku is most popular puzzle of the 21st century; its history takes its roots in ancient times. The rules of Sudoku are rather simple: the gaming field consists of a 9x9 size square, divided into smaller squares 3 cells for a side. So the whole gaming field contains 81 squares. Some squares have digits from 1 to 9 in the beginning of the game. The goal of the game is to fill in free squares with digits from 1 to 9 so, that every digit would meet only once in every line, every column and every small 3x3 square.