Sudoku Classic

Sudoku Classic is a puzzle game. It contains 81 square grids laid out in 9 rows and 9 columns. Each row and column must contain all numbers from 1 to 9. Also the whole grid when divided into 3 horizontal and vertical sections gives 9 smaller square grids of 9 cells laid out in 3 rows and 3 columns. All these 9 small square grids must also contain all numbers from 1 to 9. Use hint if required. Make note by pressing the pencil icon. Undo upto 5 steps. Making maximum allowed mistakes will end the game. You can continue with last saved game.