Sudoku Classic (1 votes, average: 2.00 out of 5)Loading... Puzzles admin 13 Jul , 2020 0 PLAY NOW! GAME INFO Help your brain stay healthy with Sudoku! In this fun logic puzzle your task is to fill the 9x9 grid with numbers. Each column, row and 3x3 block can contain the numbers 1 to 9 only once.