Kaizer Chiefs coach Arthur Zwane was loath to gloat over their extended hoodoo against Orlando Pirates, saying theirs is to win every game they play.In beating their bitter rivals 1-0 at the FNB Stadium on Saturday through a freak own goal by Pirates' Olisa Ndah, they recorded their second consecutive Soweto Derby league double over their opponents.Chiefs are now on a five-match winning streak against Pirates in the league, a remarkable stat considering Chiefs' fluctuating form in those games where they've had different coaches.Zwane didn't even flash a smile despite the success that brought them level with Pirates and Richards Bay on points despite their inferior goal difference.MATCH REPORT | Freak own goal gifts Kaizer Chiefs priceless Soweto Derby double over 10-man Orlando PiratesHowever, Zwane did display a smidgen of emotion when he said the win mattered for the fans."We always want to put a smile on the faces of the supporters and make them happy," Zwane said."However, it's just another six points for us because I don't want our players to focus on just beating Orlando Pirates."We want to beat every team that we come across, but this win was also important for us as a club and the history between the clubs."That's why we have to beat them."The fact that Chiefs didn't put Pirates away more affirmatively was a concern for Zwane, especially when the Buccaneers were a man down from the hour-mark onwards after Innocent Maela was sent off for a foul on Christian Saile.Chiefs, for all their erratic endeavour, needed Ndah, a defender who has endless misfortune against Chiefs, to nod in a speculative Edmilson Dove long ball.RECAP | DStv Premiership: Kaizer Chiefs take Soweto derby spoilsZwane admitted they still have