The Waterloo Blackhawks will try to take a commanding lead in their best-of-five U-S Hockey League playoffs with the Des Moines Buccaneers with game two in Des Moines. Waterloo claimed the series opener with a 6-3 victory Wednesday night.Waterloo coach P.K. O’Handley says he expects Des Moines to come at them hard. The Blackhawks have won only three of their previous 16 games in Des Moines.