Free Online Puzzle Games, Try the ancient game of Sudoku as you try to match up every row and every column with the digits 1-9! Each 3x3 box on the Sudoku board has to contain the numbers 1-9 as well, so carefully plan where you want to place each number! If you put in a repeating number, it'll turn red, so use that information to your advantage!, #sudoku #board #puzzle #number #logic #math #free #online #flash #play #fun