A classic Sudoku puzzle is a puzzle in which you have to place the numbers 1-9 in 9 cells that are in one of nine boxes. The cells are arranged in 3x3 grids and the boxes are also arranged in a 3x3 grid. The numbers must be placed in such a way that no digit is duplicated within a row, column, or box. Symbol Sudoku takes this idea to another level by replacing the numbers with Greek