Sudoku Classic is a number puzzle with each game having a unique solution. Sudoku rules are simple and straightforward. It is precisely their simplicity that makes finding the solution and solving these puzzles a true challenge. To play Sudoku, the player only needs to be familiar with the numbers from 1 to 9 and be able to think logically. The goal of this game is clear: to fill and complete the grid using the numbers from 1 to 9. The challenging part lays on the restrictions imposed on the player to be able to fill the grid.