Using a 3 by 3 box, put numbers in there. Each box can only contain 1 number and each number can only be used once... like this <br/><br/><br/>? ? ? <br/><br/>? ? ? <br/><br/>? ? ? <br/><br/>Oh And No Matter If U Add Them Horizontally, Vertically, Or Diagonaly In Any Direction....It Will Add Upto 15