Play CalcuDoku game, which is a logic game at Friv for school. Your aim is to fill all the empty squares with different digits to bring the numbers 1 to N once in each row and column. There are many game modes which you can choose to play. Shoot am in is also a free game and available here free. Play this game in mute mode.
Game Controls and Playing: You will play this game with the mouse. Click on an empty square and you will get the options, click which is appropriate. If you are stuck you can see the solution as well from the bar.