DIKE — New Hampton’s offense spent Friday night trying to keep Dike-New Hartford out of the end zone.The Wolverines returned a fumble and an interception for touchdowns, held the Chickasaws to 38 rushing yards and opened the Class 2A playoffs with a 48-0 victory Oct. 23.D-NH added five rushing touchdowns to complete its highest-scoring performance of the season, improving to 7-2 with its sixth consecutive win.Now comes a considerably tougher ass…