A method and apparatus for use in gaming activities, such as in a slot machine. A first grid comprising a plurality of elements overlayed a second grid comprising a plurality of elements is presented. At least some of the elements of the first grid and the second grid are marked. Marked elements of first grid are then used to form a subportion, the subportion boundary enclosing an area and having a correspondingly marked element of the first grid at each corner. Payouts are issued for marked elements and element combinations of the second grid within the subportion. The payouts may be administered according to a pay table.