Classic Sudoku is a logic puzzle. . The goal is to fill a 9x9 grid with numbers so that each column, each row, and each of the nine 3x3 subgrids that make up the grid contains all the numbers from 1 to 9. This game is suitable for both beginners and advanced players. Sudoku logic puzzle has several best features such as playing time and story. The game has two playing styles: classic and no-limit. Classic mode contains 1000 unique puzzles of four difficulty levels. Unlimited mode supports three different board types with four difficulties.