There is a funny fact, that shows that even the Berlin Pirates them self did not dream of a greater success: According to the current exit-poll estimations

There is a funny fact, that shows that even the Berlin Pirates them self did not dream of a greater success: According to the current exit-poll estimations, they would get 15 seats in the parliament. That's exactly the number of candidates they assigned. Would they get more seats, those seats would have to stay empty. Though, as others have pointed out, its more likely, that their share will go down once all votes are counted out.