The game is given a playing field of 9x9 cells. You need to fill the empty cells with numbers from 1 to 9. You can put the numbers so that in a row, in a column and in a small 3x3 square the number appears only once. You are allowed to make only 2 mistakes. You can make notes in the cells and erase the contents. The current game is saved. The game has several difficulty levels. Select an empty cell and think about what number you can put on it. Check the row, column and small square so that this number is not there. If you cannot check, then put a note in the cell and move on to the next one. By purchasing the game, you will receive: - an exciting process of a logical game - the ability to solve Sudoku puzzles - development of logical thinking and attention