Sodoku is a logic-based combinational, number-placement puzzle. The object of the game is to completely fill a 9x9 grid so that each column, row, and each of the nine 3x3 boxes. (or regions) contains the digits from 1 to 9 only one time for each number. You begin each game with a partially completed grid.. The inventor of Sodoku - the modern puzzle version, was Horward Garns. Garns was an American architect his puzzle called, "Numbers in Place" was published by Dell Magazines in 1979. Sodoku gained popularity in Japan in 1986 when the Japanese puzzle maker Nikoli began publishing their version of the game and called it "Sudoku" - which means "single number". Sodoku is now enjoyed by players worldwide. We think you will enjoy Sodoku - you can customize to your skill level. Please bookmark and return to this page anytime for updated Sodoku games online from MarcoIsland Living.com.